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856385e0c5
1313203 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
856385e0c5 |
linux_kselftest-next-6.13-rc1
kselftest update for Linux 6.13-rc1
-- timers test - removes duplicates defines
-- timers test - fixes to improve error reporting
-- rtc test - adds check rtc alarm status to alarm test
-- resctrl test - adds array overrun checks during iMC config parsing code
-- resctrl test - adds array overflow checks when reading strings
-- resctrl test - fixes and reorganizing code
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Merge tag 'linux_kselftest-next-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest update from Shuah Khan:
"timer test:
- remove duplicate defines
- fixes to improve error reporting
rtc test:
- check rtc alarm status in alarm test
resctrl test:
- add array overrun checks during iMC config parsing code and when
reading strings
- fixes and reorganizing code"
* tag 'linux_kselftest-next-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (23 commits)
selftests/resctrl: Replace magic constants used as array size
selftests/resctrl: Keep results from first test run
selftests/resctrl: Do not compare performance counters and resctrl at low bandwidth
selftests/resctrl: Use cache size to determine "fill_buf" buffer size
selftests/resctrl: Ensure measurements skip initialization of default benchmark
selftests/resctrl: Make benchmark parameter passing robust
selftests/resctrl: Remove unused measurement code
selftests/resctrl: Only support measured read operation
selftests/resctrl: Remove "once" parameter required to be false
selftests/resctrl: Make wraparound handling obvious
selftests/resctrl: Protect against array overflow when reading strings
selftests/resctrl: Protect against array overrun during iMC config parsing
selftests/resctrl: Fix memory overflow due to unhandled wraparound
selftests/resctrl: Print accurate buffer size as part of MBM results
selftests/resctrl: Make functions only used in same file static
selftests: Add a test mangling with uc_sigmask
selftests: Rename sigaltstack to generic signal
selftest: rtc: Add to check rtc alarm status for alarm related test
selftests:timers: remove local CLOCKID defines
selftests: timers: Remove unneeded semicolon
...
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||
|
Linus Torvalds
|
f89a687aae |
kgdb patches for 6.13
A relatively modest collection of changes:
* Adopt kstrtoint() and kstrtol() instead of the simple_strtoXX family
for better error checking of user input.
* Align the print behavour when breakpoints are enabled and disabled by
adopting the current behaviour of breakpoint disable for both.
* Remove some of the (rather odd and user hostile) hex fallbacks and
require kdb users to prefix with 0x instead.
* Tidy up (and fix) control code handling in kdb's keyboard code. This
makes the control code handling at the keyboard behave the same way
as it does via the UART.
* Switch my own entry in MAINTAINERS to my @kernel.org address.
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
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Merge tag 'kgdb-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux
Pull kgdb updates from Daniel Thompson:
"A relatively modest collection of changes:
- Adopt kstrtoint() and kstrtol() instead of the simple_strtoXX
family for better error checking of user input.
- Align the print behavour when breakpoints are enabled and disabled
by adopting the current behaviour of breakpoint disable for both.
- Remove some of the (rather odd and user hostile) hex fallbacks and
require kdb users to prefix with 0x instead.
- Tidy up (and fix) control code handling in kdb's keyboard code.
This makes the control code handling at the keyboard behave the
same way as it does via the UART.
- Switch my own entry in MAINTAINERS to my @kernel.org address"
* tag 'kgdb-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux:
kdb: fix ctrl+e/a/f/b/d/p/n broken in keyboard mode
MAINTAINERS: Use Daniel Thompson's korg address for kgdb work
kdb: Fix breakpoint enable to be silent if already enabled
kdb: Remove fallback interpretation of arbitrary numbers as hex
trace: kdb: Replace simple_strtoul with kstrtoul in kdb_ftdump
kdb: Replace the use of simple_strto with safer kstrto in kdb_main
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Linus Torvalds
|
aad3a0d084 |
ftrace updates for v6.13:
- Merged tag ftrace-v6.12-rc4 There was a fix to locking in register_ftrace_graph() for shadow stacks that was sent upstream. But this code was also being rewritten, and the locking fix was needed. Merging this fix was required to continue the work. - Restructure the function graph shadow stack to prepare it for use with kretprobes With the goal of merging the shadow stack logic of function graph and kretprobes, some more restructuring of the function shadow stack is required. Move out function graph specific fields from the fgraph infrastructure and store it on the new stack variables that can pass data from the entry callback to the exit callback. Hopefully, with this change, the merge of kretprobes to use fgraph shadow stacks will be ready by the next merge window. - Make shadow stack 4k instead of using PAGE_SIZE. Some architectures have very large PAGE_SIZE values which make its use for shadow stacks waste a lot of memory. - Give shadow stacks its own kmem cache. When function graph is started, every task on the system gets a shadow stack. In the future, shadow stacks may not be 4K in size. Have it have its own kmem cache so that whatever size it becomes will still be efficient in allocations. - Initialize profiler graph ops as it will be needed for new updates to fgraph - Convert to use guard(mutex) for several ftrace and fgraph functions - Add more comments and documentation - Show function return address in function graph tracer Add an option to show the caller of a function at each entry of the function graph tracer, similar to what the function tracer does. - Abstract out ftrace_regs from being used directly like pt_regs ftrace_regs was created to store a partial pt_regs. It holds only the registers and stack information to get to the function arguments and return values. On several archs, it is simply a wrapper around pt_regs. But some users would access ftrace_regs directly to get the pt_regs which will not work on all archs. Make ftrace_regs an abstract structure that requires all access to its fields be through accessor functions. - Show how long it takes to do function code modifications When code modification for function hooks happen, it always had the time recorded in how long it took to do the conversion. But this value was never exported. Recently the code was touched due to new ROX modification handling that caused a large slow down in doing the modifications and had a significant impact on boot times. Expose the timings in the dyn_ftrace_total_info file. This file was created a while ago to show information about memory usage and such to implement dynamic function tracing. It's also an appropriate file to store the timings of this modification as well. This will make it easier to see the impact of changes to code modification on boot up timings. - Other clean ups and small fixes -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCZztrUxQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qnnNAQD6w4q9VQ7oOE2qKLqtnj87h4c1GqKn SPkpEfC3n/ATEAD/fnYjT/eOSlHiGHuD/aTA+U/bETrT99bozGM/4mFKEgY= =6nCa -----END PGP SIGNATURE----- Merge tag 'ftrace-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull ftrace updates from Steven Rostedt: - Restructure the function graph shadow stack to prepare it for use with kretprobes With the goal of merging the shadow stack logic of function graph and kretprobes, some more restructuring of the function shadow stack is required. Move out function graph specific fields from the fgraph infrastructure and store it on the new stack variables that can pass data from the entry callback to the exit callback. Hopefully, with this change, the merge of kretprobes to use fgraph shadow stacks will be ready by the next merge window. - Make shadow stack 4k instead of using PAGE_SIZE. Some architectures have very large PAGE_SIZE values which make its use for shadow stacks waste a lot of memory. - Give shadow stacks its own kmem cache. When function graph is started, every task on the system gets a shadow stack. In the future, shadow stacks may not be 4K in size. Have it have its own kmem cache so that whatever size it becomes will still be efficient in allocations. - Initialize profiler graph ops as it will be needed for new updates to fgraph - Convert to use guard(mutex) for several ftrace and fgraph functions - Add more comments and documentation - Show function return address in function graph tracer Add an option to show the caller of a function at each entry of the function graph tracer, similar to what the function tracer does. - Abstract out ftrace_regs from being used directly like pt_regs ftrace_regs was created to store a partial pt_regs. It holds only the registers and stack information to get to the function arguments and return values. On several archs, it is simply a wrapper around pt_regs. But some users would access ftrace_regs directly to get the pt_regs which will not work on all archs. Make ftrace_regs an abstract structure that requires all access to its fields be through accessor functions. - Show how long it takes to do function code modifications When code modification for function hooks happen, it always had the time recorded in how long it took to do the conversion. But this value was never exported. Recently the code was touched due to new ROX modification handling that caused a large slow down in doing the modifications and had a significant impact on boot times. Expose the timings in the dyn_ftrace_total_info file. This file was created a while ago to show information about memory usage and such to implement dynamic function tracing. It's also an appropriate file to store the timings of this modification as well. This will make it easier to see the impact of changes to code modification on boot up timings. - Other clean ups and small fixes * tag 'ftrace-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (22 commits) ftrace: Show timings of how long nop patching took ftrace: Use guard to take ftrace_lock in ftrace_graph_set_hash() ftrace: Use guard to take the ftrace_lock in release_probe() ftrace: Use guard to lock ftrace_lock in cache_mod() ftrace: Use guard for match_records() fgraph: Use guard(mutex)(&ftrace_lock) for unregister_ftrace_graph() fgraph: Give ret_stack its own kmem cache fgraph: Separate size of ret_stack from PAGE_SIZE ftrace: Rename ftrace_regs_return_value to ftrace_regs_get_return_value selftests/ftrace: Fix check of return value in fgraph-retval.tc test ftrace: Use arch_ftrace_regs() for ftrace_regs_*() macros ftrace: Consolidate ftrace_regs accessor functions for archs using pt_regs ftrace: Make ftrace_regs abstract from direct use fgragh: No need to invoke the function call_filter_check_discard() fgraph: Simplify return address printing in function graph tracer function_graph: Remove unnecessary initialization in ftrace_graph_ret_addr() function_graph: Support recording and printing the function return address ftrace: Have calltime be saved in the fgraph storage ftrace: Use a running sleeptime instead of saving on shadow stack fgraph: Use fgraph data to store subtime for profiler ... |
||
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Linus Torvalds
|
8f7c8b88bd |
sched_ext: Change for v6.13
- Improve the default select_cpu() implementation making it topology aware
and handle WAKE_SYNC better.
- set_arg_maybe_null() was used to inform the verifier which ops args could
be NULL in a rather hackish way. Use the new __nullable CFI stub tags
instead.
- On Sapphire Rapids multi-socket systems, a BPF scheduler, by hammering on
the same queue across sockets, could live-lock the system to the point
where the system couldn't make reasonable forward progress. This could
lead to soft-lockup triggered resets or stalling out bypass mode switch
and thus BPF scheduler ejection for tens of minutes if not hours. After
trying a number of mitigations, the following set worked reliably:
- Injecting artificial cpu_relax() loops in two places while sched_ext is
trying to turn on the bypass mode.
- Triggering scheduler ejection when soft-lockup detection is imminent (a
quarter of threshold left).
While not the prettiest, the impact both in terms of code complexity and
overhead is minimal.
- A common complaint on the API is the overuse of the word "dispatch" and
the confusion around "consume". This is due to how the dispatch queues
became more generic over time. Rename the affected kfuncs for clarity.
Thanks to BPF's compatibility features, this change can be made in a way
that's both forward and backward compatible. The compatibility code will
be dropped in a few releases.
- Pull sched_ext/for-6.12-fixes to receive a prerequisite change. Other misc
changes.
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Merge tag 'sched_ext-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext
Pull sched_ext updates from Tejun Heo:
- Improve the default select_cpu() implementation making it topology
aware and handle WAKE_SYNC better.
- set_arg_maybe_null() was used to inform the verifier which ops args
could be NULL in a rather hackish way. Use the new __nullable CFI
stub tags instead.
- On Sapphire Rapids multi-socket systems, a BPF scheduler, by
hammering on the same queue across sockets, could live-lock the
system to the point where the system couldn't make reasonable forward
progress.
This could lead to soft-lockup triggered resets or stalling out
bypass mode switch and thus BPF scheduler ejection for tens of
minutes if not hours. After trying a number of mitigations, the
following set worked reliably:
- Injecting artificial cpu_relax() loops in two places while
sched_ext is trying to turn on the bypass mode.
- Triggering scheduler ejection when soft-lockup detection is
imminent (a quarter of threshold left).
While not the prettiest, the impact both in terms of code complexity
and overhead is minimal.
- A common complaint on the API is the overuse of the word "dispatch"
and the confusion around "consume". This is due to how the dispatch
queues became more generic over time. Rename the affected kfuncs for
clarity. Thanks to BPF's compatibility features, this change can be
made in a way that's both forward and backward compatible. The
compatibility code will be dropped in a few releases.
- Other misc changes
* tag 'sched_ext-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: (21 commits)
sched_ext: Replace scx_next_task_picked() with switch_class() in comment
sched_ext: Rename scx_bpf_dispatch[_vtime]_from_dsq*() -> scx_bpf_dsq_move[_vtime]*()
sched_ext: Rename scx_bpf_consume() to scx_bpf_dsq_move_to_local()
sched_ext: Rename scx_bpf_dispatch[_vtime]() to scx_bpf_dsq_insert[_vtime]()
sched_ext: scx_bpf_dispatch_from_dsq_set_*() are allowed from unlocked context
sched_ext: add a missing rcu_read_lock/unlock pair at scx_select_cpu_dfl()
sched_ext: Clarify sched_ext_ops table for userland scheduler
sched_ext: Enable the ops breather and eject BPF scheduler on softlockup
sched_ext: Avoid live-locking bypass mode switching
sched_ext: Fix incorrect use of bitwise AND
sched_ext: Do not enable LLC/NUMA optimizations when domains overlap
sched_ext: Introduce NUMA awareness to the default idle selection policy
sched_ext: Replace set_arg_maybe_null() with __nullable CFI stub tags
sched_ext: Rename CFI stubs to names that are recognized by BPF
sched_ext: Introduce LLC awareness to the default idle selection policy
sched_ext: Clarify ops.select_cpu() for single-CPU tasks
sched_ext: improve WAKE_SYNC behavior for default idle CPU selection
sched_ext: Use btf_ids to resolve task_struct
sched/ext: Use tg_cgroup() to elieminate duplicate code
sched/ext: Fix unmatch trailing comment of CONFIG_EXT_GROUP_SCHED
...
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Linus Torvalds
|
7586d52765 |
cgroup: Changes for v6.13
- cpu.stat now also shows niced CPU time. - Freezer and cpuset optimizations. - Other misc changes. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCZztlgg4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGbohAQDE/enqpAX9vSOpQPne4ZzgcPlGTrCwBcka3Z5z 4aOF0AD/SmdjcJ/EULisD/2O27ovsGAtqDjngrrZwNUTbCNkTQQ= =pKyo -----END PGP SIGNATURE----- Merge tag 'cgroup-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup updates from Tejun Heo: - cpu.stat now also shows niced CPU time - Freezer and cpuset optimizations - Other misc changes * tag 'cgroup-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup/cpuset: Disable cpuset_cpumask_can_shrink() test if not load balancing cgroup/cpuset: Further optimize code if CONFIG_CPUSETS_V1 not set cgroup/cpuset: Enforce at most one rebuild_sched_domains_locked() call per operation cgroup/cpuset: Revert "Allow suppression of sched domain rebuild in update_cpumasks_hier()" MAINTAINERS: remove Zefan Li cgroup/freezer: Add cgroup CGRP_FROZEN flag update helper cgroup/freezer: Reduce redundant traversal for cgroup_freeze cgroup/bpf: only cgroup v2 can be attached by bpf programs Revert "cgroup: Fix memory leak caused by missing cgroup_bpf_offline" selftests/cgroup: Fix compile error in test_cpu.c cgroup/rstat: Selftests for niced CPU statistics cgroup/rstat: Tracking cgroup-level niced CPU time cgroup/cpuset: Fix spelling errors in file kernel/cgroup/cpuset.c |
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Linus Torvalds
|
d6b6d39054 |
workqueue: Changes for v6.13
- Maximum concurrency limit of 512 which was set a long time ago is too low now. A legitimate use (BPF cgroup release) of system_wq could saturate it under stress test conditions leading to false dependencies and deadlocks. While the offending use was switched to a dedicated workqueue, use the opportunity to bump WQ_MAX_ACTIVE four fold and document that system workqueue shouldn't be saturated. Workqueue should add at least a warning mechanism for cases where system workqueues are saturated. - Recent workqueue updates to support more flexible execution topology made unbound workqueues use per-cpu worker pool frontends which pushed up workqueue flush overhead. As consecutive CPUs are likely to be pointing to the same worker pool, reduce overhead by switching locks only when necessary. -----BEGIN PGP SIGNATURE----- iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCZztfbQ4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGcaOAP9nlm5gKnY4pqQeohxfE9uRoUJY/isbuk0z2ZbB +u2AXQD/ZX16MZm1WOdJ3kcj9bxEbJerW1twus951X6+2tSnRAQ= =mBeG -----END PGP SIGNATURE----- Merge tag 'wq-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq Pull workqueue updates from Tejun Heo: - The maximum concurrency limit of 512 which was set a long time ago is too low now. A legitimate use (BPF cgroup release) of system_wq could saturate it under stress test conditions leading to false dependencies and deadlocks. While the offending use was switched to a dedicated workqueue, use the opportunity to bump WQ_MAX_ACTIVE four fold and document that system workqueue shouldn't be saturated. Workqueue should add at least a warning mechanism for cases where system workqueues are saturated. - Recent workqueue updates to support more flexible execution topology made unbound workqueues use per-cpu worker pool frontends which pushed up workqueue flush overhead. As consecutive CPUs are likely to be pointing to the same worker pool, reduce overhead by switching locks only when necessary. * tag 'wq-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: Reduce expensive locks for unbound workqueue workqueue: Adjust WQ_MAX_ACTIVE from 512 to 2048 workqueue: doc: Add a note saturating the system_wq is not permitted |
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Linus Torvalds
|
a0e752bda2 |
Probes update for v6.13:
Kprobes cleanups. Functionality does not change.
- kprobes: Cleanup the config comment
Adjust #endif comments.
- kprobes: Cleanup collect_one_slot() and __disable_kprobe()
Make fail fast to reduce code nested level.
- kprobes: Use struct_size() in __get_insn_slot()
Use struct_size() to avoid special macro.
- x86/kprobes: Cleanup kprobes on ftrace code
Use macro instead of direct field access/magic number, and avoid
redundant instruction pointer setting.
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Merge tag 'probes-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes updates from Masami Hiramatsu:
"Kprobes cleanups. Functionality does not change.
- kprobes: Cleanup the config comment
Adjust #endif comments.
- kprobes: Cleanup collect_one_slot() and __disable_kprobe()
Make fail fast to reduce code nested level.
- kprobes: Use struct_size() in __get_insn_slot()
Use struct_size() to avoid special macro.
- x86/kprobes: Cleanup kprobes on ftrace code
Use macro instead of direct field access/magic number, and avoid
redundant instruction pointer setting"
* tag 'probes-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
x86/kprobes: Cleanup kprobes on ftrace code
kprobes: Use struct_size() in __get_insn_slot()
kprobes: Cleanup collect_one_slot() and __disable_kprobe()
kprobes: Cleanup the config comment
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Linus Torvalds
|
aa44f41470 |
Livepatching changes for 6.13
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||
|
Linus Torvalds
|
7d66d3ab13 |
printk changes for 6.13
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||
|
Linus Torvalds
|
c3cda60e83 |
Another moderately busy cycle in docsland:
- Work on Chinese translations has picked up again. Happily, they are
maintaining the existing translations and not just adding new ones.
- Some maintenance of the Japanese and Italian translations as well.
- The removal of the venerable "dontdiff" file. It has long outlived its
usefulness and contained entries ("parse.*") that would actively mask
actual source change.
- The addition of enforcement information to the code-of-conduct
documentation.
Along with some build-system fixes and a lot of typo and language fixes.
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Merge tag 'docs-6.13' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"Another moderately busy cycle in docsland:
- Work on Chinese translations has picked up again. Happily, they are
maintaining the existing translations and not just adding new ones.
- Some maintenance of the Japanese and Italian translations as well.
- The removal of the venerable "dontdiff" file. It has long outlived
its usefulness and contained entries ("parse.*") that would
actively mask actual source change.
- The addition of enforcement information to the code-of-conduct
documentation.
Along with some build-system fixes and a lot of typo and language
fixes"
* tag 'docs-6.13' of git://git.lwn.net/linux: (52 commits)
Documentation/CoC: spell out enforcement for unacceptable behaviors
docs: fix typos and whitespace in Documentation/process/backporting.rst
docs/zh_CN: fix one sentence in llvm.rst
docs: bug-bisect: add a note about bisecting -next
docs/zh_CN: add the translation of kbuild/llvm.rst
Documentation: Fix incorrect paths/magic in magic numbers rst
Documentation/maintainer-tip: Fix typos
Documentation: Improve crash_kexec_post_notifiers description
Docs/zh_CN: Translate physical_memory.rst to Simplified Chinese
Documentation: admin: reorganize kernel-parameters intro
docs/zh_CN: update the translation of process/programming-language.rst
docs/zh_CN: update the translation of mm/page_owner.rst
docs/zh_CN: update the translation of mm/page_table_check.rst
docs/zh_CN: update the translation of mm/overcommit-accounting.rst
docs/zh_CN: update the translation of mm/admon/faq.rst
docs/zh_CN: update the translation of mm/active_mm.rst
docs/zh_CN: update the translation of mm/hmm.rst
docs: remove Documentation/dontdiff
docs/zh_CN: Add a entry in Chinese glossary
Docs/zh_CN: Fix the pfn calculation error in page_tables.rst
...
|
||
|
Linus Torvalds
|
bf9aa14fc5 |
A rather large update for timekeeping and timers:
- The final step to get rid of auto-rearming posix-timers
posix-timers are currently auto-rearmed by the kernel when the signal
of the timer is ignored so that the timer signal can be delivered once
the corresponding signal is unignored.
This requires to throttle the timer to prevent a DoS by small intervals
and keeps the system pointlessly out of low power states for no value.
This is a long standing non-trivial problem due to the lock order of
posix-timer lock and the sighand lock along with life time issues as
the timer and the sigqueue have different life time rules.
Cure this by:
* Embedding the sigqueue into the timer struct to have the same life
time rules. Aside of that this also avoids the lookup of the timer
in the signal delivery and rearm path as it's just a always valid
container_of() now.
* Queuing ignored timer signals onto a seperate ignored list.
* Moving queued timer signals onto the ignored list when the signal is
switched to SIG_IGN before it could be delivered.
* Walking the ignored list when SIG_IGN is lifted and requeue the
signals to the actual signal lists. This allows the signal delivery
code to rearm the timer.
This also required to consolidate the signal delivery rules so they are
consistent across all situations. With that all self test scenarios
finally succeed.
- Core infrastructure for VFS multigrain timestamping
This is required to allow the kernel to use coarse grained time stamps
by default and switch to fine grained time stamps when inode attributes
are actively observed via getattr().
These changes have been provided to the VFS tree as well, so that the
VFS specific infrastructure could be built on top.
- Cleanup and consolidation of the sleep() infrastructure
* Move all sleep and timeout functions into one file
* Rework udelay() and ndelay() into proper documented inline functions
and replace the hardcoded magic numbers by proper defines.
* Rework the fsleep() implementation to take the reality of the timer
wheel granularity on different HZ values into account. Right now the
boundaries are hard coded time ranges which fail to provide the
requested accuracy on different HZ settings.
* Update documentation for all sleep/timeout related functions and fix
up stale documentation links all over the place
* Fixup a few usage sites
- Rework of timekeeping and adjtimex(2) to prepare for multiple PTP clocks
A system can have multiple PTP clocks which are participating in
seperate and independent PTP clock domains. So far the kernel only
considers the PTP clock which is based on CLOCK TAI relevant as that's
the clock which drives the timekeeping adjustments via the various user
space daemons through adjtimex(2).
The non TAI based clock domains are accessible via the file descriptor
based posix clocks, but their usability is very limited. They can't be
accessed fast as they always go all the way out to the hardware and
they cannot be utilized in the kernel itself.
As Time Sensitive Networking (TSN) gains traction it is required to
provide fast user and kernel space access to these clocks.
The approach taken is to utilize the timekeeping and adjtimex(2)
infrastructure to provide this access in a similar way how the kernel
provides access to clock MONOTONIC, REALTIME etc.
Instead of creating a duplicated infrastructure this rework converts
timekeeping and adjtimex(2) into generic functionality which operates
on pointers to data structures instead of using static variables.
This allows to provide time accessors and adjtimex(2) functionality for
the independent PTP clocks in a subsequent step.
- Consolidate hrtimer initialization
hrtimers are set up by initializing the data structure and then
seperately setting the callback function for historical reasons.
That's an extra unnecessary step and makes Rust support less straight
forward than it should be.
Provide a new set of hrtimer_setup*() functions and convert the core
code and a few usage sites of the less frequently used interfaces over.
The bulk of the htimer_init() to hrtimer_setup() conversion is already
prepared and scheduled for the next merge window.
- Drivers:
* Ensure that the global timekeeping clocksource is utilizing the
cluster 0 timer on MIPS multi-cluster systems.
Otherwise CPUs on different clusters use their cluster specific
clocksource which is not guaranteed to be synchronized with other
clusters.
* Mostly boring cleanups, fixes, improvements and code movement
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Merge tag 'timers-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
"A rather large update for timekeeping and timers:
- The final step to get rid of auto-rearming posix-timers
posix-timers are currently auto-rearmed by the kernel when the
signal of the timer is ignored so that the timer signal can be
delivered once the corresponding signal is unignored.
This requires to throttle the timer to prevent a DoS by small
intervals and keeps the system pointlessly out of low power states
for no value. This is a long standing non-trivial problem due to
the lock order of posix-timer lock and the sighand lock along with
life time issues as the timer and the sigqueue have different life
time rules.
Cure this by:
- Embedding the sigqueue into the timer struct to have the same
life time rules. Aside of that this also avoids the lookup of
the timer in the signal delivery and rearm path as it's just a
always valid container_of() now.
- Queuing ignored timer signals onto a seperate ignored list.
- Moving queued timer signals onto the ignored list when the
signal is switched to SIG_IGN before it could be delivered.
- Walking the ignored list when SIG_IGN is lifted and requeue the
signals to the actual signal lists. This allows the signal
delivery code to rearm the timer.
This also required to consolidate the signal delivery rules so they
are consistent across all situations. With that all self test
scenarios finally succeed.
- Core infrastructure for VFS multigrain timestamping
This is required to allow the kernel to use coarse grained time
stamps by default and switch to fine grained time stamps when inode
attributes are actively observed via getattr().
These changes have been provided to the VFS tree as well, so that
the VFS specific infrastructure could be built on top.
- Cleanup and consolidation of the sleep() infrastructure
- Move all sleep and timeout functions into one file
- Rework udelay() and ndelay() into proper documented inline
functions and replace the hardcoded magic numbers by proper
defines.
- Rework the fsleep() implementation to take the reality of the
timer wheel granularity on different HZ values into account.
Right now the boundaries are hard coded time ranges which fail
to provide the requested accuracy on different HZ settings.
- Update documentation for all sleep/timeout related functions
and fix up stale documentation links all over the place
- Fixup a few usage sites
- Rework of timekeeping and adjtimex(2) to prepare for multiple PTP
clocks
A system can have multiple PTP clocks which are participating in
seperate and independent PTP clock domains. So far the kernel only
considers the PTP clock which is based on CLOCK TAI relevant as
that's the clock which drives the timekeeping adjustments via the
various user space daemons through adjtimex(2).
The non TAI based clock domains are accessible via the file
descriptor based posix clocks, but their usability is very limited.
They can't be accessed fast as they always go all the way out to
the hardware and they cannot be utilized in the kernel itself.
As Time Sensitive Networking (TSN) gains traction it is required to
provide fast user and kernel space access to these clocks.
The approach taken is to utilize the timekeeping and adjtimex(2)
infrastructure to provide this access in a similar way how the
kernel provides access to clock MONOTONIC, REALTIME etc.
Instead of creating a duplicated infrastructure this rework
converts timekeeping and adjtimex(2) into generic functionality
which operates on pointers to data structures instead of using
static variables.
This allows to provide time accessors and adjtimex(2) functionality
for the independent PTP clocks in a subsequent step.
- Consolidate hrtimer initialization
hrtimers are set up by initializing the data structure and then
seperately setting the callback function for historical reasons.
That's an extra unnecessary step and makes Rust support less
straight forward than it should be.
Provide a new set of hrtimer_setup*() functions and convert the
core code and a few usage sites of the less frequently used
interfaces over.
The bulk of the htimer_init() to hrtimer_setup() conversion is
already prepared and scheduled for the next merge window.
- Drivers:
- Ensure that the global timekeeping clocksource is utilizing the
cluster 0 timer on MIPS multi-cluster systems.
Otherwise CPUs on different clusters use their cluster specific
clocksource which is not guaranteed to be synchronized with
other clusters.
- Mostly boring cleanups, fixes, improvements and code movement"
* tag 'timers-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (140 commits)
posix-timers: Fix spurious warning on double enqueue versus do_exit()
clocksource/drivers/arm_arch_timer: Use of_property_present() for non-boolean properties
clocksource/drivers/gpx: Remove redundant casts
clocksource/drivers/timer-ti-dm: Fix child node refcount handling
dt-bindings: timer: actions,owl-timer: convert to YAML
clocksource/drivers/ralink: Add Ralink System Tick Counter driver
clocksource/drivers/mips-gic-timer: Always use cluster 0 counter as clocksource
clocksource/drivers/timer-ti-dm: Don't fail probe if int not found
clocksource/drivers:sp804: Make user selectable
clocksource/drivers/dw_apb: Remove unused dw_apb_clockevent functions
hrtimers: Delete hrtimer_init_on_stack()
alarmtimer: Switch to use hrtimer_setup() and hrtimer_setup_on_stack()
io_uring: Switch to use hrtimer_setup_on_stack()
sched/idle: Switch to use hrtimer_setup_on_stack()
hrtimers: Delete hrtimer_init_sleeper_on_stack()
wait: Switch to use hrtimer_setup_sleeper_on_stack()
timers: Switch to use hrtimer_setup_sleeper_on_stack()
net: pktgen: Switch to use hrtimer_setup_sleeper_on_stack()
futex: Switch to use hrtimer_setup_sleeper_on_stack()
fs/aio: Switch to use hrtimer_setup_sleeper_on_stack()
...
|
||
|
Linus Torvalds
|
0352387523 |
First step of consolidating the VDSO data page handling:
The VDSO data page handling is architecture specific for historical
reasons, but there is no real technical reason to do so.
Aside of that VDSO data has become a dump ground for various mechanisms
and fail to provide a clear separation of the functionalities.
Clean this up by:
* consolidating the VDSO page data by getting rid of architecture
specific warts especially in x86 and PowerPC.
* removing the last includes of header files which are pulling in other
headers outside of the VDSO namespace.
* seperating timekeeping and other VDSO data accordingly.
Further consolidation of the VDSO page handling is done in subsequent
changes scheduled for the next merge window.
This also lays the ground for expanding the VDSO time getters for
independent PTP clocks in a generic way without making every architecture
add support seperately.
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Merge tag 'timers-vdso-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull vdso data page handling updates from Thomas Gleixner:
"First steps of consolidating the VDSO data page handling.
The VDSO data page handling is architecture specific for historical
reasons, but there is no real technical reason to do so.
Aside of that VDSO data has become a dump ground for various
mechanisms and fail to provide a clear separation of the
functionalities.
Clean this up by:
- consolidating the VDSO page data by getting rid of architecture
specific warts especially in x86 and PowerPC.
- removing the last includes of header files which are pulling in
other headers outside of the VDSO namespace.
- seperating timekeeping and other VDSO data accordingly.
Further consolidation of the VDSO page handling is done in subsequent
changes scheduled for the next merge window.
This also lays the ground for expanding the VDSO time getters for
independent PTP clocks in a generic way without making every
architecture add support seperately"
* tag 'timers-vdso-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits)
x86/vdso: Add missing brackets in switch case
vdso: Rename struct arch_vdso_data to arch_vdso_time_data
powerpc: Split systemcfg struct definitions out from vdso
powerpc: Split systemcfg data out of vdso data page
powerpc: Add kconfig option for the systemcfg page
powerpc/pseries/lparcfg: Use num_possible_cpus() for potential processors
powerpc/pseries/lparcfg: Fix printing of system_active_processors
powerpc/procfs: Propagate error of remap_pfn_range()
powerpc/vdso: Remove offset comment from 32bit vdso_arch_data
x86/vdso: Split virtual clock pages into dedicated mapping
x86/vdso: Delete vvar.h
x86/vdso: Access vdso data without vvar.h
x86/vdso: Move the rng offset to vsyscall.h
x86/vdso: Access rng vdso data without vvar.h
x86/vdso: Access timens vdso data without vvar.h
x86/vdso: Allocate vvar page from C code
x86/vdso: Access rng data from kernel without vvar
x86/vdso: Place vdso_data at beginning of vvar page
x86/vdso: Use __arch_get_vdso_data() to access vdso data
x86/mm/mmap: Remove arch_vma_name()
...
|
||
|
Linus Torvalds
|
5c2b050848 |
A set of updates for the interrupt subsystem:
- Tree wide:
* Make nr_irqs static to the core code and provide accessor functions
to remove existing and prevent future aliasing problems with local
variables or function arguments of the same name.
- Core code:
* Prevent freeing an interrupt in the devres code which is not managed
by devres in the first place.
* Use seq_put_decimal_ull_width() for decimal values output in
/proc/interrupts which increases performance significantly as it
avoids parsing the format strings over and over.
* Optimize raising the timer and hrtimer soft interrupts by using the
'set bit only' variants instead of the combined version which checks
whether ksoftirqd should be woken up. The latter is a pointless
exercise as both soft interrupts are raised in the context of the
timer interrupt and therefore never wake up ksoftirqd.
* Delegate timer/hrtimer soft interrupt processing to a dedicated thread
on RT.
Timer and hrtimer soft interrupts are always processed in ksoftirqd
on RT enabled kernels. This can lead to high latencies when other
soft interrupts are delegated to ksoftirqd as well.
The separate thread allows to run them seperately under a RT
scheduling policy to reduce the latency overhead.
- Drivers:
* New drivers or extensions of existing drivers to support Renesas
RZ/V2H(P), Aspeed AST27XX, T-HEAD C900 and ATMEL sam9x7 interrupt
chips
* Support for multi-cluster GICs on MIPS.
MIPS CPUs can come with multiple CPU clusters, where each CPU cluster
has its own GIC (Generic Interrupt Controller). This requires to
access the GIC of a remote cluster through a redirect register block.
This is encapsulated into a set of helper functions to keep the
complexity out of the actual code paths which handle the GIC details.
* Support for encrypted guests in the ARM GICV3 ITS driver
The ITS page needs to be shared with the hypervisor and therefore
must be decrypted.
* Small cleanups and fixes all over the place
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Merge tag 'irq-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull interrupt subsystem updates from Thomas Gleixner:
"Tree wide:
- Make nr_irqs static to the core code and provide accessor functions
to remove existing and prevent future aliasing problems with local
variables or function arguments of the same name.
Core code:
- Prevent freeing an interrupt in the devres code which is not
managed by devres in the first place.
- Use seq_put_decimal_ull_width() for decimal values output in
/proc/interrupts which increases performance significantly as it
avoids parsing the format strings over and over.
- Optimize raising the timer and hrtimer soft interrupts by using the
'set bit only' variants instead of the combined version which
checks whether ksoftirqd should be woken up. The latter is a
pointless exercise as both soft interrupts are raised in the
context of the timer interrupt and therefore never wake up
ksoftirqd.
- Delegate timer/hrtimer soft interrupt processing to a dedicated
thread on RT.
Timer and hrtimer soft interrupts are always processed in ksoftirqd
on RT enabled kernels. This can lead to high latencies when other
soft interrupts are delegated to ksoftirqd as well.
The separate thread allows to run them seperately under a RT
scheduling policy to reduce the latency overhead.
Drivers:
- New drivers or extensions of existing drivers to support Renesas
RZ/V2H(P), Aspeed AST27XX, T-HEAD C900 and ATMEL sam9x7 interrupt
chips
- Support for multi-cluster GICs on MIPS.
MIPS CPUs can come with multiple CPU clusters, where each CPU
cluster has its own GIC (Generic Interrupt Controller). This
requires to access the GIC of a remote cluster through a redirect
register block.
This is encapsulated into a set of helper functions to keep the
complexity out of the actual code paths which handle the GIC
details.
- Support for encrypted guests in the ARM GICV3 ITS driver
The ITS page needs to be shared with the hypervisor and therefore
must be decrypted.
- Small cleanups and fixes all over the place"
* tag 'irq-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (50 commits)
irqchip/riscv-aplic: Prevent crash when MSI domain is missing
genirq/proc: Use seq_put_decimal_ull_width() for decimal values
softirq: Use a dedicated thread for timer wakeups on PREEMPT_RT.
timers: Use __raise_softirq_irqoff() to raise the softirq.
hrtimer: Use __raise_softirq_irqoff() to raise the softirq
riscv: defconfig: Enable T-HEAD C900 ACLINT SSWI drivers
irqchip: Add T-HEAD C900 ACLINT SSWI driver
dt-bindings: interrupt-controller: Add T-HEAD C900 ACLINT SSWI device
irqchip/stm32mp-exti: Use of_property_present() for non-boolean properties
irqchip/mips-gic: Fix selection of GENERIC_IRQ_EFFECTIVE_AFF_MASK
irqchip/mips-gic: Prevent indirect access to clusters without CPU cores
irqchip/mips-gic: Multi-cluster support
irqchip/mips-gic: Setup defaults in each cluster
irqchip/mips-gic: Support multi-cluster in for_each_online_cpu_gic()
irqchip/mips-gic: Replace open coded online CPU iterations
genirq/irqdesc: Use str_enabled_disabled() helper in wakeup_show()
genirq/devres: Don't free interrupt which is not managed by devres
irqchip/gic-v3-its: Fix over allocation in itt_alloc_pool()
irqchip/aspeed-intc: Add AST27XX INTC support
dt-bindings: interrupt-controller: Add support for ASPEED AST27XX INTC
...
|
||
|
Linus Torvalds
|
fb1dd1403c |
A set of changes for debugobjects:
- Prevent destroying the kmem_cache on early failure.
Destroying a kmem_cache requires work queues to be set up, but in the
early failure case they are not yet initializated. So rather leak the
cache instead of triggering a BUG.
- Reduce parallel pool fill attempts.
Refilling the object pool requires to take the global pool lock, which
causes a massive performance issue when a large number of CPUs attempt
to refill concurrently. It turns out that it's sufficient to let one
CPU handle the refill from the to free list and in case there are not
enough objects on it to allocate new objects from the kmem cache.
This also splits the free list handling from the actual allocation path
as that yields better results on RT where allocation is restricted to
preemptible code paths. The refill from free list has no such
restrictions.
- Consolidate the global and the per CPU pools to use the same data
structure, so all helper functions can be shared.
- Simplify the object allocation/free logic.
The allocation/free logic is an incomprehensible maze, which tries to
utilize the to free list and the global pool in the best way. This all
can be simplified into a straight forward comprehensible code flow.
- Convert the allocation/free mechanism to batch mode.
Transferring objects from the global pool to the per CPU pools or vice
versa is done by walking the hlist and moving object by object. That
not only increases the pool lock held time, it also dirties up to 17
cache lines.
This can be avoided by storing the pointer to the first object in a
batch of 16 objects in the objects themself and propagate it through
the batch when an object is enqueued into a pool or to a temporary
hlist head on allocation.
This allows to move batches of objects with at max four cache lines
dirtied and reduces the pool lock held time and therefore contention
significantly.
- Improve the object reusage
The current implementation is too agressively freeing unused objects,
which is counterproductive on bursty workloads like a kernel compile.
Address this by:
* increasing the per CPU pool size
* refilling the per CPU pool from the to be freed pool when the per
CPU pool emptied a batch
* keeping track of object usage with a exponentially wheighted
moving average which prevents the work queue callback to free
objects prematuraly.
This combined reduces the allocation/free rate for a full kernel
compile significantly:
kmem_cache_alloc() kmem_cache_free()
Baseline: 380k 330k
Improved: 170k 117k
- A few cleanups and a more cache line friendly layout of debug
information on top.
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Merge tag 'core-debugobjects-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull debugobjects updates from Thomas Gleixner:
- Prevent destroying the kmem_cache on early failure.
Destroying a kmem_cache requires work queues to be set up, but in the
early failure case they are not yet initializated. So rather leak the
cache instead of triggering a BUG.
- Reduce parallel pool fill attempts.
Refilling the object pool requires to take the global pool lock,
which causes a massive performance issue when a large number of CPUs
attempt to refill concurrently. It turns out that it's sufficient to
let one CPU handle the refill from the to free list and in case there
are not enough objects on it to allocate new objects from the kmem
cache.
This also splits the free list handling from the actual allocation
path as that yields better results on RT where allocation is
restricted to preemptible code paths. The refill from free list has
no such restrictions.
- Consolidate the global and the per CPU pools to use the same data
structure, so all helper functions can be shared.
- Simplify the object allocation/free logic.
The allocation/free logic is an incomprehensible maze, which tries to
utilize the to free list and the global pool in the best way. This
all can be simplified into a straight forward comprehensible code
flow.
- Convert the allocation/free mechanism to batch mode.
Transferring objects from the global pool to the per CPU pools or
vice versa is done by walking the hlist and moving object by object.
That not only increases the pool lock held time, it also dirties up
to 17 cache lines.
This can be avoided by storing the pointer to the first object in a
batch of 16 objects in the objects themself and propagate it through
the batch when an object is enqueued into a pool or to a temporary
hlist head on allocation.
This allows to move batches of objects with at max four cache lines
dirtied and reduces the pool lock held time and therefore contention
significantly.
- Improve the object reusage
The current implementation is too agressively freeing unused objects,
which is counterproductive on bursty workloads like a kernel compile.
Address this by:
* increasing the per CPU pool size
* refilling the per CPU pool from the to be freed pool when the
per CPU pool emptied a batch
* keeping track of object usage with a exponentially wheighted
moving average which prevents the work queue callback to free
objects prematuraly.
This combined reduces the allocation/free rate for a full kernel
compile significantly:
kmem_cache_alloc() kmem_cache_free()
Baseline: 380k 330k
Improved: 170k 117k
- A few cleanups and a more cache line friendly layout of debug
information on top.
* tag 'core-debugobjects-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits)
debugobjects: Track object usage to avoid premature freeing of objects
debugobjects: Refill per CPU pool more agressively
debugobjects: Double the per CPU slots
debugobjects: Move pool statistics into global_pool struct
debugobjects: Implement batch processing
debugobjects: Prepare kmem_cache allocations for batching
debugobjects: Prepare for batching
debugobjects: Use static key for boot pool selection
debugobjects: Rework free_object_work()
debugobjects: Rework object freeing
debugobjects: Rework object allocation
debugobjects: Move min/max count into pool struct
debugobjects: Rename and tidy up per CPU pools
debugobjects: Use separate list head for boot pool
debugobjects: Move pools into a datastructure
debugobjects: Reduce parallel pool fill attempts
debugobjects: Make debug_objects_enabled bool
debugobjects: Provide and use free_object_list()
debugobjects: Remove pointless debug printk
debugobjects: Reuse put_objects() on OOM
...
|
||
|
Linus Torvalds
|
a5c93bfec0 |
x86/mm changes for v6.13:
- x86/mm/tlb: Put cpumask_test_cpu() check in switch_mm_irqs_off()
under CONFIG_DEBUG_VM, to micro-optimize the context-switching
code (Rik van Riel)
- x86/mm/doc: Add missing details in virtual memory layout (Kirill A. Shutemov)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-mm-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm updates from Ingo Molnar:
- Put cpumask_test_cpu() check in switch_mm_irqs_off() under
CONFIG_DEBUG_VM, to micro-optimize the context-switching code (Rik
van Riel)
- Add missing details in virtual memory layout (Kirill A. Shutemov)
* tag 'x86-mm-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm/tlb: Put cpumask_test_cpu() check in switch_mm_irqs_off() under CONFIG_DEBUG_VM
x86/mm/doc: Add missing details in virtual memory layout
|
||
|
Linus Torvalds
|
89c45f3823 |
x86 cleanups for v6.13:
- x86/boot: Remove unused function atou() (Dr. David Alan Gilbert) - x86/cpu: Use str_yes_no() helper in show_cpuinfo_misc() (Thorsten Blum) - x86/platform: Switch back to struct platform_driver::remove() (Uwe Kleine-König) Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmc7gbsRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1gk4g//QiV5NS8d5mc+6q/UbVahST5Mf3Yktg7/ LIgzJyqUMZctkbcASDbyTlFqZXGYfZ/ZY6VPEOuo0ANE57GfSbcuwe+gdvL9kXWQ 9IN5Tst4BJ4iMC+FXYA+VgRAg5Ufy4xJFpw1ObnNtAQ4f2emCTeCMPonCrN8x737 2dbHzgnJSBbDgG6lxcEJZ/PsoKoTLiq6uZZ98FRRrHCWmkPkNOn2IQx97ITdAKcj LnQkTYnTRIzap/eLBrqgxhhtM2R+3DrDClar3WWRSCoFMYg6c8aptidDBQcJhUKZ XIhb2enKBKFVtzahjPVOiqLE2i+JGGiPSyQnCpt7y2yHQUyDXkDWWMPdZKC/6WHf +2sLgEdl+pz2o3mGDMCkkG58bDgEf0+5gGva+M5F6h7GslYM9Gp0doOYZDt6l+FH 3rrmXj2WKwI2kM0SWDwfgdLhhmPEsIm8DMOjOftEfR0pwqyUw5JmPfD1dnudrPX0 wfpRavlUAzzW0IbWaL+S2VhqQnLhLwJ/T/Gb6Gi6LOkTaRuD42hu0tkctlfJ/VTR 7Bk+mV2PHpBek3gWnKEUegYQ9LK9DGIucvYi693MWjXVFN6vSyNEsaefRHbT2rGi QuLnO2Laecg6SGNBjLYJBWjv72H2CohDRuJdFgzzJAEzebLwdCJE79qjqWRhpKAx sEzSy0+6waw= =l+KH -----END PGP SIGNATURE----- Merge tag 'x86-cleanups-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cleanups from Ingo Molnar: - x86/boot: Remove unused function atou() (Dr. David Alan Gilbert) - x86/cpu: Use str_yes_no() helper in show_cpuinfo_misc() (Thorsten Blum) - x86/platform: Switch back to struct platform_driver::remove() (Uwe Kleine-König) * tag 'x86-cleanups-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot: Remove unused function atou() x86/cpu: Use str_yes_no() helper in show_cpuinfo_misc() x86/platform: Switch back to struct platform_driver::remove() |
||
|
Linus Torvalds
|
0892d74213 |
x86/splitlock changes for v6.13:
- Move Split and Bus lock code to a dedicated file (Ravi Bangoria) - Add split/bus lock support for AMD (Ravi Bangoria) Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmc7gMERHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1hEaQ//YRk2Dc3VkiwC+ZE44Bi4ZlztACzjvkL/ sFjOqX4dSWJLMFDPfISGGEN4e20IFA46uYXwoZQOZEz5RY4tPaJYw+o1aBP5YYEN EEv4iRc20FIIYckkyCShP00dKoZlmb6FbxyUysRRwZW0XJuMVLyJnGNmZs0peVvt 5c8+7erl0CPN9RaR66lULT4YenyvUZ7DChfeB3a1LbazC5+IrEumiIysLJUKj6zN 075+FeQ084156sFR+LUSjblxLKzY/OqT/727osST2WlMo/HWLIJImCXodHMHG+LC dRI0NFFU9zn2G6rGcoltLNsU/TSJfaWoGS8pm6c96kItEZly/BFz5MF1IQIbCfDx YFJpil1zJQQeV3FUXldhKGoSio0fv0KWcqC0TLjj/DhqprjdktJGuGIX6ChmkytA TDLZPWZxInZdVnWVMBuaJ6defMRBLART02u9DRIoXYEX6aDLjJ1JFTRe5hU9vVab cq+GR3ZSeDM9gSGjfW6dGG5746KXX+Wwxv4stxSoygSxmrLPH38CrZ5m66edtKzq P+V2/utvhdHZSKawsIpM4Xz5u7fweySkVFQjJyEEeMWyXnfC+alP9OUsVTKS8mFa zKbX7mEgnBDcEE9w6O5itL4nIgB3Kooci5uEWDRTAYUee82Hqk09Ycyb5XQkJ7bs Cl65CoY+XAA= =QpKp -----END PGP SIGNATURE----- Merge tag 'x86-splitlock-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 splitlock updates from Ingo Molnar: - Move Split and Bus lock code to a dedicated file (Ravi Bangoria) - Add split/bus lock support for AMD (Ravi Bangoria) * tag 'x86-splitlock-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/bus_lock: Add support for AMD x86/split_lock: Move Split and Bus lock code to a dedicated file |
||
|
Linus Torvalds
|
3f020399e4 |
Scheduler changes for v6.13:
- Core facilities:
- Add the "Lazy preemption" model (CONFIG_PREEMPT_LAZY=y), which optimizes
fair-class preemption by delaying preemption requests to the
tick boundary, while working as full preemption for RR/FIFO/DEADLINE
classes. (Peter Zijlstra)
- x86: Enable Lazy preemption (Peter Zijlstra)
- riscv: Enable Lazy preemption (Jisheng Zhang)
- Initialize idle tasks only once (Thomas Gleixner)
- sched/ext: Remove sched_fork() hack (Thomas Gleixner)
- Fair scheduler:
- Optimize the PLACE_LAG when se->vlag is zero (Huang Shijie)
- Idle loop:
Optimize the generic idle loop by removing unnecessary
memory barrier (Zhongqiu Han)
- RSEQ:
- Improve cache locality of RSEQ concurrency IDs for
intermittent workloads (Mathieu Desnoyers)
- Waitqueues:
- Make wake_up_{bit,var} less fragile (Neil Brown)
- PSI:
- Pass enqueue/dequeue flags to psi callbacks directly (Johannes Weiner)
- Preparatory patches for proxy execution:
- core: Add move_queued_task_locked helper (Connor O'Brien)
- core: Consolidate pick_*_task to task_is_pushable helper (Connor O'Brien)
- core: Split out __schedule() deactivate task logic into a helper (John Stultz)
- core: Split scheduler and execution contexts (Peter Zijlstra)
- locking/mutex: Make mutex::wait_lock irq safe (Juri Lelli)
- locking/mutex: Expose __mutex_owner() (Juri Lelli)
- locking/mutex: Remove wakeups from under mutex::wait_lock (Peter Zijlstra)
- Misc fixes and cleanups:
- core: Remove unused __HAVE_THREAD_FUNCTIONS hook support (David Disseldorp)
- core: Update the comment for TIF_NEED_RESCHED_LAZY (Sebastian Andrzej Siewior)
- wait: Remove unused bit_wait_io_timeout (Dr. David Alan Gilbert)
- fair: remove the DOUBLE_TICK feature (Huang Shijie)
- fair: fix the comment for PREEMPT_SHORT (Huang Shijie)
- uclamp: Fix unnused variable warning (Christian Loehle)
- rt: No PREEMPT_RT=y for all{yes,mod}config
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"Core facilities:
- Add the "Lazy preemption" model (CONFIG_PREEMPT_LAZY=y), which
optimizes fair-class preemption by delaying preemption requests to
the tick boundary, while working as full preemption for
RR/FIFO/DEADLINE classes. (Peter Zijlstra)
- x86: Enable Lazy preemption (Peter Zijlstra)
- riscv: Enable Lazy preemption (Jisheng Zhang)
- Initialize idle tasks only once (Thomas Gleixner)
- sched/ext: Remove sched_fork() hack (Thomas Gleixner)
Fair scheduler:
- Optimize the PLACE_LAG when se->vlag is zero (Huang Shijie)
Idle loop:
- Optimize the generic idle loop by removing unnecessary memory
barrier (Zhongqiu Han)
RSEQ:
- Improve cache locality of RSEQ concurrency IDs for intermittent
workloads (Mathieu Desnoyers)
Waitqueues:
- Make wake_up_{bit,var} less fragile (Neil Brown)
PSI:
- Pass enqueue/dequeue flags to psi callbacks directly (Johannes
Weiner)
Preparatory patches for proxy execution:
- Add move_queued_task_locked helper (Connor O'Brien)
- Consolidate pick_*_task to task_is_pushable helper (Connor O'Brien)
- Split out __schedule() deactivate task logic into a helper (John
Stultz)
- Split scheduler and execution contexts (Peter Zijlstra)
- Make mutex::wait_lock irq safe (Juri Lelli)
- Expose __mutex_owner() (Juri Lelli)
- Remove wakeups from under mutex::wait_lock (Peter Zijlstra)
Misc fixes and cleanups:
- Remove unused __HAVE_THREAD_FUNCTIONS hook support (David
Disseldorp)
- Update the comment for TIF_NEED_RESCHED_LAZY (Sebastian Andrzej
Siewior)
- Remove unused bit_wait_io_timeout (Dr. David Alan Gilbert)
- remove the DOUBLE_TICK feature (Huang Shijie)
- fix the comment for PREEMPT_SHORT (Huang Shijie)
- Fix unnused variable warning (Christian Loehle)
- No PREEMPT_RT=y for all{yes,mod}config"
* tag 'sched-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
sched, x86: Update the comment for TIF_NEED_RESCHED_LAZY.
sched: No PREEMPT_RT=y for all{yes,mod}config
riscv: add PREEMPT_LAZY support
sched, x86: Enable Lazy preemption
sched: Enable PREEMPT_DYNAMIC for PREEMPT_RT
sched: Add Lazy preemption model
sched: Add TIF_NEED_RESCHED_LAZY infrastructure
sched/ext: Remove sched_fork() hack
sched: Initialize idle tasks only once
sched: psi: pass enqueue/dequeue flags to psi callbacks directly
sched/uclamp: Fix unnused variable warning
sched: Split scheduler and execution contexts
sched: Split out __schedule() deactivate task logic into a helper
sched: Consolidate pick_*_task to task_is_pushable helper
sched: Add move_queued_task_locked helper
locking/mutex: Expose __mutex_owner()
locking/mutex: Make mutex::wait_lock irq safe
locking/mutex: Remove wakeups from under mutex::wait_lock
sched: Improve cache locality of RSEQ concurrency IDs for intermittent workloads
sched: idle: Optimize the generic idle loop by removing needless memory barrier
...
|
||
|
Linus Torvalds
|
f41dac3efb |
Performance events changes for v6.13:
- Uprobes:
- Add BPF session support (Jiri Olsa)
- Switch to RCU Tasks Trace flavor for better performance (Andrii Nakryiko)
- Massively increase uretprobe SMP scalability by SRCU-protecting
the uretprobe lifetime (Andrii Nakryiko)
- Kill xol_area->slot_count (Oleg Nesterov)
- Core facilities:
- Implement targeted high-frequency profiling by adding the ability
for an event to "pause" or "resume" AUX area tracing (Adrian Hunter)
- VM profiling/sampling:
- Correct perf sampling with guest VMs (Colton Lewis)
- New hardware support:
- x86/intel: Add PMU support for Intel ArrowLake-H CPUs (Dapeng Mi)
- Misc fixes and enhancements:
- x86/intel/pt: Fix buffer full but size is 0 case (Adrian Hunter)
- x86/amd: Warn only on new bits set (Breno Leitao)
- x86/amd/uncore: Avoid a false positive warning about snprintf
truncation in amd_uncore_umc_ctx_init (Jean Delvare)
- uprobes: Re-order struct uprobe_task to save some space (Christophe JAILLET)
- x86/rapl: Move the pmu allocation out of CPU hotplug (Kan Liang)
- x86/rapl: Clean up cpumask and hotplug (Kan Liang)
- uprobes: Deuglify xol_get_insn_slot/xol_free_insn_slot paths (Oleg Nesterov)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull performance events updates from Ingo Molnar:
"Uprobes:
- Add BPF session support (Jiri Olsa)
- Switch to RCU Tasks Trace flavor for better performance (Andrii
Nakryiko)
- Massively increase uretprobe SMP scalability by SRCU-protecting
the uretprobe lifetime (Andrii Nakryiko)
- Kill xol_area->slot_count (Oleg Nesterov)
Core facilities:
- Implement targeted high-frequency profiling by adding the ability
for an event to "pause" or "resume" AUX area tracing (Adrian
Hunter)
VM profiling/sampling:
- Correct perf sampling with guest VMs (Colton Lewis)
New hardware support:
- x86/intel: Add PMU support for Intel ArrowLake-H CPUs (Dapeng Mi)
Misc fixes and enhancements:
- x86/intel/pt: Fix buffer full but size is 0 case (Adrian Hunter)
- x86/amd: Warn only on new bits set (Breno Leitao)
- x86/amd/uncore: Avoid a false positive warning about snprintf
truncation in amd_uncore_umc_ctx_init (Jean Delvare)
- uprobes: Re-order struct uprobe_task to save some space
(Christophe JAILLET)
- x86/rapl: Move the pmu allocation out of CPU hotplug (Kan Liang)
- x86/rapl: Clean up cpumask and hotplug (Kan Liang)
- uprobes: Deuglify xol_get_insn_slot/xol_free_insn_slot paths (Oleg
Nesterov)"
* tag 'perf-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits)
perf/core: Correct perf sampling with guest VMs
perf/x86: Refactor misc flag assignments
perf/powerpc: Use perf_arch_instruction_pointer()
perf/core: Hoist perf_instruction_pointer() and perf_misc_flags()
perf/arm: Drop unused functions
uprobes: Re-order struct uprobe_task to save some space
perf/x86/amd/uncore: Avoid a false positive warning about snprintf truncation in amd_uncore_umc_ctx_init
perf/x86/intel: Do not enable large PEBS for events with aux actions or aux sampling
perf/x86/intel/pt: Add support for pause / resume
perf/core: Add aux_pause, aux_resume, aux_start_paused
perf/x86/intel/pt: Fix buffer full but size is 0 case
uprobes: SRCU-protect uretprobe lifetime (with timeout)
uprobes: allow put_uprobe() from non-sleepable softirq context
perf/x86/rapl: Clean up cpumask and hotplug
perf/x86/rapl: Move the pmu allocation out of CPU hotplug
uprobe: Add support for session consumer
uprobe: Add data pointer to consumer handlers
perf/x86/amd: Warn only on new bits set
uprobes: fold xol_take_insn_slot() into xol_get_insn_slot()
uprobes: kill xol_area->slot_count
...
|
||
|
Linus Torvalds
|
9d7d4ad222 |
Objtool changes for v6.13:
- Detect non-relocated text references for more robust
IBT sealing (Josh Poimboeuf)
- Fix build error when building stripped down
UAPI headers (HONG Yifan)
- Exclude __tracepoints data from ENDBR checks to fix
false positives on clang builds (Peter Zijlstra)
- Fix ORC unwind for newly forked tasks (Zheng Yejian)
- Fix readelf related faddr2line regression (Carlos Llamas)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molnar:
- Detect non-relocated text references for more robust
IBT sealing (Josh Poimboeuf)
- Fix build error when building stripped down
UAPI headers (HONG Yifan)
- Exclude __tracepoints data from ENDBR checks to fix
false positives on clang builds (Peter Zijlstra)
- Fix ORC unwind for newly forked tasks (Zheng Yejian)
- Fix readelf related faddr2line regression (Carlos Llamas)
* tag 'objtool-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Exclude __tracepoints data from ENDBR checks
Revert "scripts/faddr2line: Check only two symbols when calculating symbol size"
x86/unwind/orc: Fix unwind for newly forked tasks
objtool: Also include tools/include/uapi
objtool: Detect non-relocated text references
|
||
|
Linus Torvalds
|
364eeb79a2 |
Locking changes for v6.13 are:
- lockdep:
- Enable PROVE_RAW_LOCK_NESTING with PROVE_LOCKING (Sebastian Andrzej Siewior)
- Add lockdep_cleanup_dead_cpu() (David Woodhouse)
- futexes:
- Use atomic64_inc_return() in get_inode_sequence_number() (Uros Bizjak)
- Use atomic64_try_cmpxchg_relaxed() in get_inode_sequence_number() (Uros Bizjak)
- RT locking:
- Add sparse annotation PREEMPT_RT's locking (Sebastian Andrzej Siewior)
- spinlocks:
- Use atomic_try_cmpxchg_release() in osq_unlock() (Uros Bizjak)
- atomics:
- x86: Use ALT_OUTPUT_SP() for __alternative_atomic64() (Uros Bizjak)
- x86: Use ALT_OUTPUT_SP() for __arch_{,try_}cmpxchg64_emu() (Uros Bizjak)
- KCSAN, seqlocks:
- Support seqcount_latch_t (Marco Elver)
- <linux/cleanup.h>:
- Add if_not_cond_guard() conditional guard helper (David Lechner)
- Adjust scoped_guard() macros to avoid potential warning (Przemek Kitszel)
- Remove address space of returned pointer (Uros Bizjak)
- WW mutexes:
- locking/ww_mutex: Adjust to lockdep nest_lock requirements (Thomas Hellström)
- Rust integration:
- Fix raw_spin_lock initialization on PREEMPT_RT (Eder Zulian)
- miscellaneous cleanups & fixes:
- lockdep: Fix wait-type check related warnings (Ahmed Ehab)
- lockdep: Use info level for initial info messages (Jiri Slaby)
- spinlocks: Make __raw_* lock ops static (Geert Uytterhoeven)
- pvqspinlock: Convert fields of 'enum vcpu_state' to uppercase (Qiuxu Zhuo)
- iio: magnetometer: Fix if () scoped_guard() formatting (Stephen Rothwell)
- rtmutex: Fix misleading comment (Peter Zijlstra)
- percpu-rw-semaphores: Fix grammar in percpu-rw-semaphore.rst (Xiu Jianfeng)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"Lockdep:
- Enable PROVE_RAW_LOCK_NESTING with PROVE_LOCKING (Sebastian Andrzej
Siewior)
- Add lockdep_cleanup_dead_cpu() (David Woodhouse)
futexes:
- Use atomic64_inc_return() in get_inode_sequence_number() (Uros
Bizjak)
- Use atomic64_try_cmpxchg_relaxed() in get_inode_sequence_number()
(Uros Bizjak)
RT locking:
- Add sparse annotation PREEMPT_RT's locking (Sebastian Andrzej
Siewior)
spinlocks:
- Use atomic_try_cmpxchg_release() in osq_unlock() (Uros Bizjak)
atomics:
- x86: Use ALT_OUTPUT_SP() for __alternative_atomic64() (Uros Bizjak)
- x86: Use ALT_OUTPUT_SP() for __arch_{,try_}cmpxchg64_emu() (Uros
Bizjak)
KCSAN, seqlocks:
- Support seqcount_latch_t (Marco Elver)
<linux/cleanup.h>:
- Add if_not_guard() conditional guard helper (David Lechner)
- Adjust scoped_guard() macros to avoid potential warning (Przemek
Kitszel)
- Remove address space of returned pointer (Uros Bizjak)
WW mutexes:
- locking/ww_mutex: Adjust to lockdep nest_lock requirements (Thomas
Hellström)
Rust integration:
- Fix raw_spin_lock initialization on PREEMPT_RT (Eder Zulian)
Misc cleanups & fixes:
- lockdep: Fix wait-type check related warnings (Ahmed Ehab)
- lockdep: Use info level for initial info messages (Jiri Slaby)
- spinlocks: Make __raw_* lock ops static (Geert Uytterhoeven)
- pvqspinlock: Convert fields of 'enum vcpu_state' to uppercase
(Qiuxu Zhuo)
- iio: magnetometer: Fix if () scoped_guard() formatting (Stephen
Rothwell)
- rtmutex: Fix misleading comment (Peter Zijlstra)
- percpu-rw-semaphores: Fix grammar in percpu-rw-semaphore.rst (Xiu
Jianfeng)"
* tag 'locking-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (29 commits)
locking/Documentation: Fix grammar in percpu-rw-semaphore.rst
iio: magnetometer: fix if () scoped_guard() formatting
rust: helpers: Avoid raw_spin_lock initialization for PREEMPT_RT
kcsan, seqlock: Fix incorrect assumption in read_seqbegin()
seqlock, treewide: Switch to non-raw seqcount_latch interface
kcsan, seqlock: Support seqcount_latch_t
time/sched_clock: Broaden sched_clock()'s instrumentation coverage
time/sched_clock: Swap update_clock_read_data() latch writes
locking/atomic/x86: Use ALT_OUTPUT_SP() for __arch_{,try_}cmpxchg64_emu()
locking/atomic/x86: Use ALT_OUTPUT_SP() for __alternative_atomic64()
cleanup: Add conditional guard helper
cleanup: Adjust scoped_guard() macros to avoid potential warning
locking/osq_lock: Use atomic_try_cmpxchg_release() in osq_unlock()
cleanup: Remove address space of returned pointer
locking/rtmutex: Fix misleading comment
locking/rt: Annotate unlock followed by lock for sparse.
locking/rt: Add sparse annotation for RCU.
locking/rt: Remove one __cond_lock() in RT's spin_trylock_irqsave()
locking/rt: Add sparse annotation PREEMPT_RT's sleeping locks.
locking/pvqspinlock: Convert fields of 'enum vcpu_state' to uppercase
...
|
||
|
Linus Torvalds
|
d8d78a90e7 |
- Add a feature flag which denotes AMD CPUs supporting workload classification
with the purpose of using such hints when making scheduling decisions - Determine the boost enumerator for each AMD core based on its type: efficiency or performance, in the cppc driver - Add the type of a CPU to the topology CPU descriptor with the goal of supporting and making decisions based on the type of the respective core - Add a feature flag to denote AMD cores which have heterogeneous topology and enable SD_ASYM_PACKING for those - Check microcode revisions before disabling PCID on Intel - Cleanups and fixlets -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmc7q0UACgkQEsHwGGHe VUq27Q//TADIn/rZj95OuWLYFXduOpzdyfF6BAOabRjUpIWTGJ5YdKjj1TCA2wUE 6SiHZWQxQropB3NgeICcDT+3OGdGzE2qywzpXspUDsBPraWx+9CA56qREYafpRps 88ZQZJWHla2/0kHN5oM4fYe05mWMLAFgIhG4tPH/7sj54Zqar40nhVksz3WjKAid yEfzbdVeRI5sNoujyHzGANXI0Fo98nAyi5Qj9kXL9W/UV1JmoQ78Rq7V9IIgOBsc l6Gv/h0CNtH9voqfrfUb07VHk8ZqSJ37xUnrnKdidncWGCWEAoZRr7wU+I9CHKIs tzdx+zq6JC3YN0IwsZCjk4me+BqVLJxW2oDgW7esPifye6ElyEo4T9UO9LEpE1qm ReAByoIMdSXWwXuITwy4NxLPKPCpU7RyJCiqFzpJp0g4qUq2cmlyERDirf6eknXL s+dmRaglEdcQT/EL+Y+vfFdQtLdwJmOu+nPPjjFxeRcIDB+u1sXJMEFbyvkLL6FE HOdNxL+5n/3M8Lbh77KIS5uCcjXL2VCkZK2/hyoifUb+JZR/ENoqYjElkMXOplyV KQIfcTzVCLRVvZApf/MMkTO86cpxMDs7YLYkgFxDsBjRdoq/Mzub8yzWn6kLZtmP ANNH4uYVtjrHE1nxJSA0JgYQlJKYeNU5yhLiTLKhHL5BwDYfiz8= =420r -----END PGP SIGNATURE----- Merge tag 'x86_cpu_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cpuid updates from Borislav Petkov: - Add a feature flag which denotes AMD CPUs supporting workload classification with the purpose of using such hints when making scheduling decisions - Determine the boost enumerator for each AMD core based on its type: efficiency or performance, in the cppc driver - Add the type of a CPU to the topology CPU descriptor with the goal of supporting and making decisions based on the type of the respective core - Add a feature flag to denote AMD cores which have heterogeneous topology and enable SD_ASYM_PACKING for those - Check microcode revisions before disabling PCID on Intel - Cleanups and fixlets * tag 'x86_cpu_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu: Remove redundant CONFIG_NUMA guard around numa_add_cpu() x86/cpu: Fix FAM5_QUARK_X1000 to use X86_MATCH_VFM() x86/cpu: Fix formatting of cpuid_bits[] in scattered.c x86/cpufeatures: Add X86_FEATURE_AMD_WORKLOAD_CLASS feature bit x86/amd: Use heterogeneous core topology for identifying boost numerator x86/cpu: Add CPU type to struct cpuinfo_topology x86/cpu: Enable SD_ASYM_PACKING for PKG domain on AMD x86/cpufeatures: Add X86_FEATURE_AMD_HETEROGENEOUS_CORES x86/cpufeatures: Rename X86_FEATURE_FAST_CPPC to have AMD prefix x86/mm: Don't disable PCID when INVLPG has been fixed by microcode |
||
|
Linus Torvalds
|
55db8eb456 |
- Do the proper memory conversion of guest memory in order to be able to kexec
kernels in SNP guests along with other adjustments and cleanups to that effect - Start converting and moving functionality from the sev-guest driver into core code with the purpose of supporting the secure TSC SNP feature where the hypervisor cannot influence the TSC exposed to the guest anymore - Add a "nosnp" cmdline option in order to be able to disable SNP support in the hypervisor and thus free-up resources which are not going to be used - Cleanups -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmc7ZToACgkQEsHwGGHe VUp61hAArA8taJaGUSdoe3sN60yRWCTe30QiDLvUrDGqmPHbBnDpdYsoaZujkQMI 334piSWWu/pB6meO93uwv8X/ZO0ryOw46RK3szTz/RhBB5pTO3NbAj1zMF5q2KUy a+SYbZffV+qBUEpGujGrqrwT7X3U70yCKJFaZQOGvyYFzo+kyx6euqlYP+StOD+D ph7SDrXv0N0uU/2OiwCzF0cKvAuNHG2Cfn3kqSKvcZ+NWF3BKmw1IkgFA9f05P+j mOkc+1jCbi26b94MSJHSL33iRtbD0NgUzT9F2tw9Qszw1BQ5Er30Y45ywoudAhsn VrpMhBwWRCUdakQ2PsI7O8WB4gnBdWpEuzS2Ssqa1akB+pggH2xQzVb5EznmbzlS gz/SqUP75ijTT/oGh+C/hKAES3pmO4pH48J7llOKzb8YpoxxzjSEVb2pVbLzNdIV +it12Cap0lW+CTNGF4p2TbuKXKkE1LiGya1JMymQiZL8quCBYJIQUttiBvBg8Ac1 oCw2DXQZsjDw55Hwwhr95J4FuY4+iQd+o1GgRDQ4MEqaYFEfdcFRA1YCbMHgiAzu NOGwjrQ2PB5xGST34qobGtk7Xt2nIilDvl5K5Co2E4s14NLrlBHo2uq33d0unlIZ BJMrHG/IWNjuHbKl/vM05fuiKEIvpL5qTKz7oVL6tX8Zphf6ljU= =C431 -----END PGP SIGNATURE----- Merge tag 'x86_sev_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 SEV updates from Borislav Petkov: - Do the proper memory conversion of guest memory in order to be able to kexec kernels in SNP guests along with other adjustments and cleanups to that effect - Start converting and moving functionality from the sev-guest driver into core code with the purpose of supporting the secure TSC SNP feature where the hypervisor cannot influence the TSC exposed to the guest anymore - Add a "nosnp" cmdline option in order to be able to disable SNP support in the hypervisor and thus free-up resources which are not going to be used - Cleanups [ Reminding myself about the endless TLA's again: SEV is the AMD Secure Encrypted Virtualization - Linus ] * tag 'x86_sev_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/sev: Cleanup vc_handle_msr() x86/sev: Convert shared memory back to private on kexec x86/mm: Refactor __set_clr_pte_enc() x86/boot: Skip video memory access in the decompressor for SEV-ES/SNP virt: sev-guest: Carve out SNP message context structure virt: sev-guest: Reduce the scope of SNP command mutex virt: sev-guest: Consolidate SNP guest messaging parameters to a struct x86/sev: Cache the secrets page address x86/sev: Handle failures from snp_init() virt: sev-guest: Use AES GCM crypto library x86/virt: Provide "nosnp" boot option for sev kernel command line x86/virt: Move SEV-specific parsing into arch/x86/virt/svm |
||
|
Linus Torvalds
|
9db8b24070 |
- Replace deprecated PCI functions used in intel-mid
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||
|
Linus Torvalds
|
ab713e7099 |
- Remove the unconditional cache writeback and invalidation after loading the
microcode patch on Intel as this was addressing a microcode bug for which there is a concrete microcode revision check instead -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmc7Vv4ACgkQEsHwGGHe VUpZtA//erQJlwD+GLWfVoao76Y24LPUVAd20CjvtExDqvOsmvA7lYID89tFXxx0 dD3NDQBW8MI0oZ+Upc9fdRLMWE7SEOQDqk4WlMDMckc1+lv54+lqVA5wv6ee7goY ksUoMQ30MAMZ8ka4vGyjLFsLiYFhVgNCivuJdyi2igABHCGQFSRyl8zog6gWtUTU 3YzTjYjNBY1nZAL99Ibda6VpnmWLOyP24X8hqMp8DD/qqHwhKZfnnqTdoIAkalOq OBK/7vQVaWj5YyUwH/VoJ2iorTv0/XtrNsBRkrxmQaS996/WR8yN4mHbuvThiATc i7b9IEVuoc6KhEuy4sPqt4Yl3QomEed+85/p1NJ5jD6cF4x2+GSnpJF6v/bNRR7T j46jStvJ7f15OcugExRGFI9DjC64ZbHumSrumhLWmKmAqjfAqlYChWUOicHi8l3+ fshTnTRBSUmglGqbkgEVPIRv9e4BkuMpnFCDqAiq8mUm0dzqOZyvvh/gfHTUA+h0 2HykwBitgHEC/e4EHiPpT/Bnm93uL/qBNOhgOWCmOfLGJgdcAE93qP48urj1cbES D5wbNqM5iUvA8jw4frWl222nf7r0FuHVD05pkhJ3m2uvJINWCC3EHFD2Bs3vTEr9 xSGN+nOuWFR2D65RvsMr0eO9x1OTYo679TSyfeTHChnNMWRBcXQ= =wDsa -----END PGP SIGNATURE----- Merge tag 'x86_microcode_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 microcode loader update from Borislav Petkov: - Remove the unconditional cache writeback and invalidation after loading the microcode patch on Intel as this was addressing a microcode bug for which there is a concrete microcode revision check instead * tag 'x86_microcode_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/microcode/intel: Remove unnecessary cache writeback and invalidation |
||
|
Linus Torvalds
|
5a4b3fbb48 |
- Add support for 6-node sub-NUMA clustering on Intel
- Cleanup -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmc7UqEACgkQEsHwGGHe VUoheQ//RYJFLA8K4JLykSSlzY6ixf4wr6aorO7cn0xPLi73ZKRWHMLpL7jWO1z4 SgKgWM0w93DjbNK81EcQLmTBQPSSzHnMzACafVJBkfQQiAjdsHxaOcJ6Y7tbFkXB BVf8wFmiNamz00OxtXMUv3ZwvKn9xrar1R67yYOdrZVCV1w4A3IzfNPPpmc3FE5r n+Z8tZybBzQqyyMnlyirKjHx1/bGURN/fF8+UuRy9T8L7XcI5Y8QUCP9N0K1OiUg 8XBDoy4Wc0F47XdnKqLxY/eR2D+qqH+KgIyjVThGJ5tJHRRpN5maK2s4s5eeT3Js /o8GAInChsXnyr9CAs4rUk4/f4Ai5QlccFGv+LPHBfUxcRfw+tXDe6sBQdIhUFpR q87CGnkbfp2yLrADxIjne59l5RqI8S1gGXGTtBJSVzu993Xu/w1Vpfkb52rLBVGZ JqQsGzHtbZyEA3mSnbWY1kHOSkwqccQejGjD5ufygdhojO1H0stvOsOxY0doFeII DQWlKDY78J1yN0r3RXdwzmD6W5SJ1r+03jbSRUb/3CaQpdKUiAk+8vV6mw4EfHEo gnCqU21jGZTqhCRquqehpzD8SK56gndbA6TEC6avx+8eTizA4uNKQWe07lKMM4oe glHCZvAf1k+hGvGz/8xioCQSpHgfZvVlZoR4Kv1enOj+05uiohc= =7r2j -----END PGP SIGNATURE----- Merge tag 'x86_cache_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cache resource control updates from Borislav Petkov: - Add support for 6-node sub-NUMA clustering on Intel - Cleanup * tag 'x86_cache_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/resctrl: Support Sub-NUMA cluster mode SNC6 x86/resctrl: Slightly clean-up mbm_config_show() |
||
|
Linus Torvalds
|
c1f2ffe207 |
- Log and handle twp new AMD-specific MCA registers: SYND1 and SYND2 and
report the Field Replaceable Unit text info reported through them
- Add support for handling variable-sized SMCA BERT records
- Add the capability for reporting vendor-specific RAS error info without
adding vendor-specific fields to struct mce
- Cleanups
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Merge tag 'ras_core_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS updates from Borislav Petkov:
- Log and handle twp new AMD-specific MCA registers: SYND1 and SYND2
and report the Field Replaceable Unit text info reported through them
- Add support for handling variable-sized SMCA BERT records
- Add the capability for reporting vendor-specific RAS error info
without adding vendor-specific fields to struct mce
- Cleanups
* tag 'ras_core_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
EDAC/mce_amd: Add support for FRU text in MCA
x86/mce/apei: Handle variable SMCA BERT record size
x86/MCE/AMD: Add support for new MCA_SYND{1,2} registers
tracing: Add __print_dynamic_array() helper
x86/mce: Add wrapper for struct mce to export vendor specific info
x86/mce/intel: Use MCG_BANKCNT_MASK instead of 0xff
x86/mce/mcelog: Use xchg() to get and clear the flags
|
||
|
Linus Torvalds
|
77286b868f |
- Add support for Bluefield-2 SOCs to bluefield_edac
- Add support for Intel Panther Lake-H to igen6_edac
- Add polling support to igen6_edac as some Intel M100 chips have trouble with
error interrupts
- Add Kaby Lake-S support to ie31200_edac
- Fix memory source detection in the SKX common module which is used by
a couple of Intel EDAC drivers
- Add support for the NXP i.MX9 memory controller to fsl_edac
- The usual fixes and cleanups all over the place
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Merge tag 'edac_updates_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC updates from Borislav Petkov:
- Add support for Bluefield-2 SOCs to bluefield_edac
- Add support for Intel Panther Lake-H to igen6_edac
- Add polling support to igen6_edac as some Intel M100 chips have
trouble with error interrupts
- Add Kaby Lake-S support to ie31200_edac
- Fix memory source detection in the SKX common module which is used by
a couple of Intel EDAC drivers
- Add support for the NXP i.MX9 memory controller to fsl_edac
- The usual fixes and cleanups all over the place
* tag 'edac_updates_for_v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/igen6: Add polling support
EDAC/igen6: Initialize edac_op_state according to the configuration data
EDAC/igen6: Avoid segmentation fault on module unload
EDAC/ie31200: Add Kaby Lake-S dual-core host bridge ID
MAINTAINERS: Change FSL DDR EDAC maintainership
EDAC/{skx_common,i10nm}: Fix incorrect far-memory error source indicator
EDAC/skx_common: Differentiate memory error sources
EDAC/fsl_ddr: Add support for i.MX9 DDR controller
dt-bindings: memory: fsl: Add compatible string nxp,imx9-memory-controller
EDAC/fsl_ddr: Fix bad bit shift operations
EDAC/fsl_ddr: Move global variables into struct fsl_mc_pdata
EDAC/fsl_ddr: Pass down fsl_mc_pdata in ddr_in32() and ddr_out32()
RAS/AMD/ATL: Add debug prints for DF register reads
EDAC/bluefield: Use Arm SMC for EMI access on BlueField-2
EDAC/bluefield: Fix potential integer overflow
EDAC/igen6: Add Intel Panther Lake-H SoCs support
|
||
|
Linus Torvalds
|
769ca7d4d2 |
Kernel Concurrency Sanitizer (KCSAN) updates for v6.13
- Fixes to make KCSAN compatible with PREEMPT_RT - Minor cleanups All changes have been in linux-next for the past 4 weeks. -----BEGIN PGP SIGNATURE----- iIcEABYIAC8WIQR7t4b/75lzOR3l5rcxsLN3bbyLnwUCZzMoFREcZWx2ZXJAZ29v Z2xlLmNvbQAKCRAxsLN3bbyLn6cVAP4l4IzMyRm+kAW8yqnMjfZBl2+cJ15J5Huy jQLqPSdruwD/W8ciiJvz9FhKtQQwVXtZF3WcNdkNgGLqhHbEkPBw4gA= =Lx19 -----END PGP SIGNATURE----- Merge tag 'kcsan-20241112-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/melver/linux Pull Kernel Concurrency Sanitizer (KCSAN) updates from Marco Elver: - Make KCSAN compatible with PREEMPT_RT - Minor cleanup * tag 'kcsan-20241112-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/melver/linux: kcsan: Remove redundant call of kallsyms_lookup_name() kcsan: Turn report_filterlist_lock into a raw_spinlock |
||
|
Linus Torvalds
|
8cdf2d1903 |
RCU pull request for v6.13
SRCU:
- Introduction of the new SRCU-lite flavour with a new pair of
srcu_read_[un]lock_lite() APIs. In practice the read side using
this flavour becomes lighter by removing a full memory barrier on
LOCK and a full memory barrier on UNLOCK. This comes at the
expense of a higher latency write side with two (in the best case
of a snaphot of unused read-sides) or more RCU grace periods on
the update side which now assumes by itself the whole full
ordering guarantee against the LOCK/UNLOCK counters on both
indexes, along with the accesses performed inside.
Uretprobes is a known potential user.
Note this doesn't replace the default normal flavour of SRCU which
still behaves the same as usual.
- Add testing of SRCU-lite through rcutorture and rcuscale
- Various cleanups on the way.
FIXES:
- Allow short-circuiting RCU-TASKS-RUDE grace periods on architectures
that have sane noinstr boundaries forbidding tracing on low-level
idle and kernel entry code. RCU-TASKS is enough on such configurations
because it involves an RCU grace period that waits for all idle
tasks to either schedule out voluntarily or enter into RCU
unwatched noinstr code.
- Allow and test start_poll_synchronize_rcu() with IRQs disabled.
- Mention rcuog kthreads in relevant documentation and Kconfig help
- Various fixes and consolidations
RCUTORTURE:
- Add --no-affinity on tools to leave the affinity setting of guests
up to the user.
- Add guest_os_delay parameter to rcuscale for better warm-up
control.
- Fix and improve some rcuscale error handling.
- Various cleanups and fixes
STALL:
- Remove dead code
- Stop dumping tasks if a stalled grace period eventually ended
midway as that only produces confusing output.
- Optimize detection of stalling CPUs and avoid useless node
locking otherwise.
NOCB:
- Fix rcu_barrier() hang due to a race against callbacks
deoffloading. This is not yet used, except by rcutorture, and
waits for its promised cpusets interface.
- Remove leftover function declaration
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Merge tag 'rcu.release.v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
Pull RCU updates from Frederic Weisbecker:
"SRCU:
- Introduction of the new SRCU-lite flavour with a new pair of
srcu_read_[un]lock_lite() APIs. In practice the read side using
this flavour becomes lighter by removing a full memory barrier on
LOCK and a full memory barrier on UNLOCK. This comes at the expense
of a higher latency write side with two (in the best case of a
snaphot of unused read-sides) or more RCU grace periods on the
update side which now assumes by itself the whole full ordering
guarantee against the LOCK/UNLOCK counters on both indexes, along
with the accesses performed inside.
Uretprobes is a known potential user.
Note this doesn't replace the default normal flavour of SRCU which
still behaves the same as usual.
- Add testing of SRCU-lite through rcutorture and rcuscale
- Various cleanups on the way.
Fixes:
- Allow short-circuiting RCU-TASKS-RUDE grace periods on
architectures that have sane noinstr boundaries forbidding tracing
on low-level idle and kernel entry code. RCU-TASKS is enough on
such configurations because it involves an RCU grace period that
waits for all idle tasks to either schedule out voluntarily or
enter into RCU unwatched noinstr code.
- Allow and test start_poll_synchronize_rcu() with IRQs disabled.
- Mention rcuog kthreads in relevant documentation and Kconfig help
- Various fixes and consolidations
rcutorture:
- Add --no-affinity on tools to leave the affinity setting of guests
up to the user.
- Add guest_os_delay parameter to rcuscale for better warm-up
control.
- Fix and improve some rcuscale error handling.
- Various cleanups and fixes
stall:
- Remove dead code
- Stop dumping tasks if a stalled grace period eventually ended
midway as that only produces confusing output.
- Optimize detection of stalling CPUs and avoid useless node locking
otherwise.
NOCB:
- Fix rcu_barrier() hang due to a race against callbacks
deoffloading. This is not yet used, except by rcutorture, and waits
for its promised cpusets interface.
- Remove leftover function declaration"
* tag 'rcu.release.v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (42 commits)
rcuscale: Remove redundant WARN_ON_ONCE() splat
rcuscale: Do a proper cleanup if kfree_scale_init() fails
srcu: Unconditionally record srcu_read_lock_lite() in ->srcu_reader_flavor
srcu: Check for srcu_read_lock_lite() across all CPUs
srcu: Remove smp_mb() from srcu_read_unlock_lite()
rcutorture: Avoid printing cpu=-1 for no-fault RCU boost failure
rcuscale: Add guest_os_delay module parameter
refscale: Correct affinity check
torture: Add --no-affinity parameter to kvm.sh
rcu/nocb: Fix missed RCU barrier on deoffloading
rcu/kvfree: Fix data-race in __mod_timer / kvfree_call_rcu
rcu/srcutiny: don't return before reenabling preemption
rcu-tasks: Remove open-coded one-byte cmpxchg() emulation
doc: Remove kernel-parameters.txt entry for rcutorture.read_exit
rcutorture: Test start-poll primitives with interrupts disabled
rcu: Permit start_poll_synchronize_rcu*() with interrupts disabled
rcu: Allow short-circuiting of synchronize_rcu_tasks_rude()
doc: Add rcuog kthreads to kernel-per-CPU-kthreads.rst
rcu: Add rcuog kthreads to RCU_NOCB_CPU help text
rcu: Use the BITS_PER_LONG macro
...
|
||
|
Linus Torvalds
|
2b5d5f23d4 |
hmon updates for v6.13-rc1
* New drivers - ISL28022 power monitor - Nuvoton NCT7363Y * Added support for new chips to existing drivers - The tmp180 driver now supports NXP p3t1085, including its I3C mode - The ina2xx driver now supports SY24655 and INA260 - The amc6821 driver now supports tsd,mule * Other notable improvements - The sht4x driver now supports the chip heater - The pmbus/isl68137 driver now supports a voltage divider on Vout - The cros_ec driver registers with the thermal framework - The pmbus/ltc2978 driver now supports LTC7841 - The PMBus core now allow drivers to override WRITE_PROTECT * Various other minor improvements and cleanups -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEiHPvMQj9QTOCiqgVyx8mb86fmYEFAmc6tlAACgkQyx8mb86f mYEmThAAi85J4hUepnrpfKwzqzTgXhU3Y1ih7qWyIK0ErI5tjmYiCR3PHHd7jNb0 A5STfbpRkomvepQq9H79lv5EiOMFvudYLj2QuxFbSchz0J2XqXtg2RxUi9AK0/SE b+KLRjNNNHc2J2tDrLj14ZJJxMbqx35kx2x6TDGI+zoBhQ0XwEWkbtNuXipSpHQ8 OkTjbtGKlQrjtc7fJ/fWGlTDeVS2LWtCbJhybcL47IkPeIBQH/FIhoEnnKqj9/EV KROuVAIoAYK9r+w7ZDfp2iBpR0gOaWZ5I2w2cCufsO9pFEuMIeVDgfFP2XGLBXEi NlVlMMyk6X7XqvnHYmun6r9chuPtFc9+Rr7SnJkVaNviY7BmRcuWk1BGxA4GIAIR 6F3sBxlXdisnjVkYd1ENhCGlso/fXQizKUro3KZka0sXEnjxA+SE0dzIK8d77kip P6Mjg3hC6DZlA0eIlnbCWasu0gra4duVTpGTOcbfZQHN+50Fi4va9w2+1UDfIPnn f2gIUubtzrWZqKAPnN6ckIE7BQubsPukx7Zef0wgDRpxOgCBrKeQVX8LYtXQfkda G+LkSk1N1bUIpTbzGQPg7YLbVCQPQYqaSryFPL2lQtfEY58Tgt+EMCKSROmXMBOV tk9uDaN8OjXdYmU90jcHJR7v1WDkLRkRV0fsh6eFUpc8gQDiY+k= =BG/M -----END PGP SIGNATURE----- Merge tag 'hwmon-for-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hmon updates from Guenter Roeck: "New drivers: - ISL28022 power monitor - Nuvoton NCT7363Y Added support for new chips to existing drivers: - The tmp180 driver now supports NXP p3t1085, including its I3C mode - The ina2xx driver now supports SY24655 and INA260 - The amc6821 driver now supports tsd,mule Other notable improvements: - The sht4x driver now supports the chip heater - The pmbus/isl68137 driver now supports a voltage divider on Vout - The cros_ec driver registers with the thermal framework - The pmbus/ltc2978 driver now supports LTC7841 - The PMBus core now allow drivers to override WRITE_PROTECT Various other minor improvements and cleanups" * tag 'hwmon-for-v6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (51 commits) hwmon: (pmbus/isl68137) add support for voltage divider on Vout dt-bindings: hwmon: isl68137: add bindings to support voltage dividers hwmon: tmp108: fix I3C dependency hwmon: (cros_ec) register thermal sensors to thermal framework hwmon: (tmp108) Add support for I3C device hwmon: (tmp108) Add helper function tmp108_common_probe() to prepare I3C support hwmon: (acpi_power_meter) Fix fail to load module on platform without _PMD method hwmon: (nct6775-core) Fix overflows seen when writing limit attributes hwmon: (pwm-fan) Introduce start from stopped state handling dt-bindings: hwmon: pwm-fan: Document start from stopped state properties hwmon: (tmp108) Add NXP p3t1085 support dt-bindings: hwmon: ti,tmp108: Add nxp,p3t1085 compatible string hwmon: (sch5627, max31827) Fix typos in driver documentation hwmon: (jc42) Drop of_match_ptr() protection hwmon: (f71882fg) Fix grammar in fan speed trip points explanation dt-bindings: hwmon: pmbus: add ti tps25990 support hwmon: (pmbus/core) clear faults after setting smbalert mask hwmon: (pmbus/core) allow drivers to override WRITE_PROTECT hwmon: (pmbus) add documentation for existing flags hwmon: (ina226) Add support for SY24655 ... |
||
|
Linus Torvalds
|
4e9ad033b4 |
ACPI updates for 6.13-rc1
- Fix _CPC register setting issue for registers located in memory in
the ACPI CPPC library code (Lifeng Zheng).
- Use DEFINE_SIMPLE_DEV_PM_OPS in the ACPI battery driver, make it use
devm_ for initializing mutexes and allocating driver data, and make
it check the register_pm_notifier() return value (Thomas Weißschuh,
Andy Shevchenko).
- Make the ACPI EC driver support compile-time conditional and allow
ACPI to be built without CONFIG_HAS_IOPORT (Arnd Bergmann).
- Remove a redundant error check from the pfr_telemetry driver (Colin
Ian King).
- Rearrange the processor_perflib code in the ACPI processor driver
to avoid compiling x86-specific code on other architectures (Arnd
Bergmann).
- Add adev NULL check to acpi_quirk_skip_serdev_enumeration() and
make UART skip quirks work on PCI UARTs without an UID (Hans de
Goede).
- Force native backlight handling Apple MacbookPro11,2 and Air7,2 in
the ACPI video driver (Jonathan Denose).
- Switch several ACPI platform drivers back to using struct
platform_driver::remove() (Uwe Kleine-König).
- Replace strcpy() with strscpy() in multiple places in the ACPI
subsystem (Muhammad Qasim Abdul Majeed, Abdul Rahim).
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Merge tag 'acpi-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These include a couple of fixes, a new ACPI backlight quirk for Apple
MacbookPro11,2 and Air7,2 and a bunch of cleanups:
- Fix _CPC register setting issue for registers located in memory in
the ACPI CPPC library code (Lifeng Zheng)
- Use DEFINE_SIMPLE_DEV_PM_OPS in the ACPI battery driver, make it
use devm_ for initializing mutexes and allocating driver data, and
make it check the register_pm_notifier() return value (Thomas
Weißschuh, Andy Shevchenko)
- Make the ACPI EC driver support compile-time conditional and allow
ACPI to be built without CONFIG_HAS_IOPORT (Arnd Bergmann)
- Remove a redundant error check from the pfr_telemetry driver (Colin
Ian King)
- Rearrange the processor_perflib code in the ACPI processor driver
to avoid compiling x86-specific code on other architectures (Arnd
Bergmann)
- Add adev NULL check to acpi_quirk_skip_serdev_enumeration() and
make UART skip quirks work on PCI UARTs without an UID (Hans de
Goede)
- Force native backlight handling Apple MacbookPro11,2 and Air7,2 in
the ACPI video driver (Jonathan Denose)
- Switch several ACPI platform drivers back to using struct
platform_driver::remove() (Uwe Kleine-König)
- Replace strcpy() with strscpy() in multiple places in the ACPI
subsystem (Muhammad Qasim Abdul Majeed, Abdul Rahim)"
* tag 'acpi-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (24 commits)
ACPI: video: force native for Apple MacbookPro11,2 and Air7,2
ACPI: CPPC: Fix _CPC register setting issue
ACPI: Switch back to struct platform_driver::remove()
ACPI: x86: Add adev NULL check to acpi_quirk_skip_serdev_enumeration()
ACPI: x86: Make UART skip quirks work on PCI UARTs without an UID
ACPI: allow building without CONFIG_HAS_IOPORT
ACPI: processor_perflib: extend X86 dependency
ACPI: scan: Use strscpy() instead of strcpy()
ACPI: SBSHC: Use strscpy() instead of strcpy()
ACPI: SBS: Use strscpy() instead of strcpy()
ACPI: power: Use strscpy() instead of strcpy()
ACPI: pci_root: Use strscpy() instead of strcpy()
ACPI: pci_link: Use strscpy() instead of strcpy()
ACPI: event: Use strscpy() instead of strcpy()
ACPI: EC: Use strscpy() instead of strcpy()
ACPI: APD: Use strscpy() instead of strcpy()
ACPI: thermal: Use strscpy() instead of strcpy()
ACPI: battery: Check for error code from devm_mutex_init() call
ACPI: EC: make EC support compile-time conditional
ACPI: pfr_telemetry: remove redundant error check on ret
...
|
||
|
Linus Torvalds
|
cd7fa3e1b0 |
Thermal control updates for 6.13-rc1
- Add support for thermal thresholds that can be added and removed from
user space via netlink along with a related library update (Daniel
Lezcano).
- Fix thermal zone initialization, suspend/resume and exit
synchronization issues (Rafael Wysocki).
- Rearrange locking in the thermal core to use guards (Rafael Wysocki).
- Make the code handling thermal zone temperature updates use sorted
lists of trip points to reduce the number of trip points table walks
in the thermal core (Rafael Wysocki).
- Fix and clean up the thermal testing facility code (Rafael Wysocki).
- Fix a Power Allocator thermal governor issue (ZhengShaobo).
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Merge tag 'thermal-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These are thermal core changes, including the addition of support for
temperature thresholds that can be set from user space, fixes related
to thermal zone initialization, suspend/resume and exit, locking
rework and rearrangement of the code handling thermal zone temperature
updates.
Specifics:
- Add support for thermal thresholds that can be added and removed
from user space via netlink along with a related library update
(Daniel Lezcano)
- Fix thermal zone initialization, suspend/resume and exit
synchronization issues (Rafael Wysocki)
- Rearrange locking in the thermal core to use guards (Rafael
Wysocki)
- Make the code handling thermal zone temperature updates use sorted
lists of trip points to reduce the number of trip points table
walks in the thermal core (Rafael Wysocki)
- Fix and clean up the thermal testing facility code (Rafael Wysocki)
- Fix a Power Allocator thermal governor issue (ZhengShaobo)"
* tag 'thermal-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (45 commits)
thermal: testing: Initialize some variables annoteded with _free()
thermal: testing: Use DEFINE_FREE() and __free() to simplify code
thermal: testing: Simplify tt_get_tt_zone()
thermal: gov_power_allocator: Granted power set to max when nobody request power
thermal: core: Relocate thermal zone initialization routine
thermal: core: Use trip lists for trip crossing detection
thermal: core: Eliminate thermal_zone_trip_down()
thermal: core: Relocate functions that update trip points
thermal: core: Move some trip processing to thermal_trip_crossed()
thermal: core: Pass trip descriptor to thermal_trip_crossed()
thermal: core: Rearrange __thermal_zone_device_update()
thermal: core: Prepare for moving trips between sorted lists
thermal: core: Rename trip list node in struct thermal_trip_desc
thermal: core: Build sorted lists instead of sorting them later
thermal/lib: Fix memory leak on error in thermal_genl_auto()
thermal: thresholds: Fix thermal lock annotation issue
tools/thermal/thermal-engine: Take into account the thresholds API
tools/lib/thermal: Add the threshold netlink ABI
tools/lib/thermal: Make more generic the command encoding function
thermal: netlink: Add the commands and the events for the thresholds
...
|
||
|
Linus Torvalds
|
ad52c55e1d |
Power management updates for 6.13-rc1
- Update the amd-pstate driver to set the initial scaling frequency
policy lower bound to be the lowest non-linear frequency (Dhananjay
Ugwekar).
- Enable amd-pstate by default on servers starting with newer AMD Epyc
processors (Swapnil Sapkal).
- Align more codepaths between shared memory and MSR designs in
amd-pstate (Dhananjay Ugwekar).
- Clean up amd-pstate code to rename functions and remove redundant
calls (Dhananjay Ugwekar, Mario Limonciello).
- Do other assorted fixes and cleanups in amd-pstate (Dhananjay Ugwekar
and Mario Limonciello).
- Change the Balance-performance EPP value for Granite Rapids in the
intel_pstate driver to a more performance-biased one (Srinivas
Pandruvada).
- Simplify MSR read on the boot CPU in the ACPI cpufreq driver (Chang
S. Bae).
- Ensure sugov_eas_rebuild_sd() is always called when sugov_init()
succeeds to always enforce sched domains rebuild in case EAS needs
to be enabled (Christian Loehle).
- Switch cpufreq back to platform_driver::remove() (Uwe Kleine-König).
- Use proper frequency unit names in cpufreq (Marcin Juszkiewicz).
- Add a built-in idle states table for Granite Rapids Xeon D to the
intel_idle driver (Artem Bityutskiy).
- Fix some typos in comments in the cpuidle core and drivers (Shen
Lichuan).
- Remove iowait influence from the menu cpuidle governor (Christian
Loehle).
- Add min/max available performance state limits to the Energy Model
management code (Lukasz Luba).
- Update pm-graph to v5.13 (Todd Brandt).
- Add documentation for some recently introduced cpupower utility
options (Tor Vic).
- Make cpupower inform users where cpufreq-bench.conf should be located
when opening it fails (Peng Fan).
- Allow overriding cross-compiling env params in cpupower (Peng Fan).
- Add compile_commands.json to .gitignore in cpupower (John B. Wyatt
IV).
- Improve disable c_state block in cpupower bindings and add a test to
confirm that CPU state is disabled to it (John B. Wyatt IV).
- Add Chinese Simplified translation to cpupower (Kieran Moy).
- Add checks for xgettext and msgfmt to cpupower (Siddharth Menon).
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Merge tag 'pm-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"The amd-pstate cpufreq driver gets the majority of changes this time.
They are mostly fixes and cleanups, but one of them causes it to
become the default cpufreq driver on some AMD server platforms.
Apart from that, the menu cpuidle governor is modified to not use
iowait any more, the intel_idle gets a custom C-states table for
Granite Rapids Xeon D, and the intel_pstate driver will use a more
aggressive Balance- performance default EPP value on Granite Rapids
now.
There are also some fixes, cleanups and tooling updates.
Specifics:
- Update the amd-pstate driver to set the initial scaling frequency
policy lower bound to be the lowest non-linear frequency (Dhananjay
Ugwekar)
- Enable amd-pstate by default on servers starting with newer AMD
Epyc processors (Swapnil Sapkal)
- Align more codepaths between shared memory and MSR designs in
amd-pstate (Dhananjay Ugwekar)
- Clean up amd-pstate code to rename functions and remove redundant
calls (Dhananjay Ugwekar, Mario Limonciello)
- Do other assorted fixes and cleanups in amd-pstate (Dhananjay
Ugwekar and Mario Limonciello)
- Change the Balance-performance EPP value for Granite Rapids in the
intel_pstate driver to a more performance-biased one (Srinivas
Pandruvada)
- Simplify MSR read on the boot CPU in the ACPI cpufreq driver (Chang
S. Bae)
- Ensure sugov_eas_rebuild_sd() is always called when sugov_init()
succeeds to always enforce sched domains rebuild in case EAS needs
to be enabled (Christian Loehle)
- Switch cpufreq back to platform_driver::remove() (Uwe Kleine-König)
- Use proper frequency unit names in cpufreq (Marcin Juszkiewicz)
- Add a built-in idle states table for Granite Rapids Xeon D to the
intel_idle driver (Artem Bityutskiy)
- Fix some typos in comments in the cpuidle core and drivers (Shen
Lichuan)
- Remove iowait influence from the menu cpuidle governor (Christian
Loehle)
- Add min/max available performance state limits to the Energy Model
management code (Lukasz Luba)
- Update pm-graph to v5.13 (Todd Brandt)
- Add documentation for some recently introduced cpupower utility
options (Tor Vic)
- Make cpupower inform users where cpufreq-bench.conf should be
located when opening it fails (Peng Fan)
- Allow overriding cross-compiling env params in cpupower (Peng Fan)
- Add compile_commands.json to .gitignore in cpupower (John B. Wyatt
IV)
- Improve disable c_state block in cpupower bindings and add a test
to confirm that CPU state is disabled to it (John B. Wyatt IV)
- Add Chinese Simplified translation to cpupower (Kieran Moy)
- Add checks for xgettext and msgfmt to cpupower (Siddharth Menon)"
* tag 'pm-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (38 commits)
cpufreq: intel_pstate: Update Balance-performance EPP for Granite Rapids
cpufreq: ACPI: Simplify MSR read on the boot CPU
sched/cpufreq: Ensure sd is rebuilt for EAS check
intel_idle: add Granite Rapids Xeon D support
PM: EM: Add min/max available performance state limits
cpufreq/amd-pstate: Move registration after static function call update
cpufreq/amd-pstate: Push adjust_perf vfunc init into cpu_init
cpufreq/amd-pstate: Align offline flow of shared memory and MSR based systems
cpufreq/amd-pstate: Call cppc_set_epp_perf in the reenable function
cpufreq/amd-pstate: Do not attempt to clear MSR_AMD_CPPC_ENABLE
cpufreq/amd-pstate: Rename functions that enable CPPC
cpufreq/amd-pstate-ut: Add fix for min freq unit test
amd-pstate: Switch to amd-pstate by default on some Server platforms
amd-pstate: Set min_perf to nominal_perf for active mode performance gov
cpufreq/amd-pstate: Remove the redundant amd_pstate_set_driver() call
cpufreq/amd-pstate: Remove the switch case in amd_pstate_init()
cpufreq/amd-pstate: Call amd_pstate_set_driver() in amd_pstate_register_driver()
cpufreq/amd-pstate: Call amd_pstate_register() in amd_pstate_init()
cpufreq/amd-pstate: Set the initial min_freq to lowest_nonlinear_freq
cpufreq/amd-pstate: Remove the redundant verify() function
...
|
||
|
Linus Torvalds
|
8a7fa81137 |
Random number generator updates for Linux 6.13-rc1.
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|
Linus Torvalds
|
02b2f1a7b8 |
This update includes the following changes:
API:
- Add sig driver API.
- Remove signing/verification from akcipher API.
- Move crypto_simd_disabled_for_test to lib/crypto.
- Add WARN_ON for return values from driver that indicates memory corruption.
Algorithms:
- Provide crc32-arch and crc32c-arch through Crypto API.
- Optimise crc32c code size on x86.
- Optimise crct10dif on arm/arm64.
- Optimise p10-aes-gcm on powerpc.
- Optimise aegis128 on x86.
- Output full sample from test interface in jitter RNG.
- Retry without padata when it fails in pcrypt.
Drivers:
- Add support for Airoha EN7581 TRNG.
- Add support for STM32MP25x platforms in stm32.
- Enable iproc-r200 RNG driver on BCMBCA.
- Add Broadcom BCM74110 RNG driver.
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Merge tag 'v6.13-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"API:
- Add sig driver API
- Remove signing/verification from akcipher API
- Move crypto_simd_disabled_for_test to lib/crypto
- Add WARN_ON for return values from driver that indicates memory
corruption
Algorithms:
- Provide crc32-arch and crc32c-arch through Crypto API
- Optimise crc32c code size on x86
- Optimise crct10dif on arm/arm64
- Optimise p10-aes-gcm on powerpc
- Optimise aegis128 on x86
- Output full sample from test interface in jitter RNG
- Retry without padata when it fails in pcrypt
Drivers:
- Add support for Airoha EN7581 TRNG
- Add support for STM32MP25x platforms in stm32
- Enable iproc-r200 RNG driver on BCMBCA
- Add Broadcom BCM74110 RNG driver"
* tag 'v6.13-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (112 commits)
crypto: marvell/cesa - fix uninit value for struct mv_cesa_op_ctx
crypto: cavium - Fix an error handling path in cpt_ucode_load_fw()
crypto: aesni - Move back to module_init
crypto: lib/mpi - Export mpi_set_bit
crypto: aes-gcm-p10 - Use the correct bit to test for P10
hwrng: amd - remove reference to removed PPC_MAPLE config
crypto: arm/crct10dif - Implement plain NEON variant
crypto: arm/crct10dif - Macroify PMULL asm code
crypto: arm/crct10dif - Use existing mov_l macro instead of __adrl
crypto: arm64/crct10dif - Remove remaining 64x64 PMULL fallback code
crypto: arm64/crct10dif - Use faster 16x64 bit polynomial multiply
crypto: arm64/crct10dif - Remove obsolete chunking logic
crypto: bcm - add error check in the ahash_hmac_init function
crypto: caam - add error check to caam_rsa_set_priv_key_form
hwrng: bcm74110 - Add Broadcom BCM74110 RNG driver
dt-bindings: rng: add binding for BCM74110 RNG
padata: Clean up in padata_do_multithreaded()
crypto: inside-secure - Fix the return value of safexcel_xcbcmac_cra_init()
crypto: qat - Fix missing destroy_workqueue in adf_init_aer()
crypto: rsassa-pkcs1 - Reinstate support for legacy protocols
...
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Linus Torvalds
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1af29b34ea |
chrome platform firmware changes for 6.13
* Fixes
- Do not double register "simple-framebuffer" platform device if
Generic System Framebuffers (sysfb) already did that.
- Fix a missing of unregistering platform driver in error handling
path.
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Merge tag 'chrome-platform-firmware-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform firmware updates from Tzung-Bi Shih:
- Do not double register "simple-framebuffer" platform device if
Generic System Framebuffers (sysfb) already did that
- Fix a missing of unregistering platform driver in error handling path
* tag 'chrome-platform-firmware-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
firmware: google: Unregister driver_info on failure
firmware: coreboot: Don't register a pdev if screen_info data is present
firmware: sysfb: Add a sysfb_handles_screen_info() helper function
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Linus Torvalds
|
78516f4aef |
chrome platform changes for 6.13
* Fixes
- Fix a leak of fwnode refcount.
* Cleanups
- Drop unused I2C driver data.
- Move back from platform_driver::remove_new() to
platform_driver::remove().
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Merge tag 'chrome-platform-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform updates from Tzung-Bi Shih:
"Fixes:
- Fix a leak of fwnode refcount.
Cleanups:
- Drop unused I2C driver data
- Move back from platform_driver::remove_new() to
platform_driver::remove()"
* tag 'chrome-platform-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: Switch back to struct platform_driver::remove()
platform/chrome: cros_ec_typec: fix missing fwnode reference decrement
platform/chrome: Drop explicit initialization of struct i2c_device_id::driver_data to 0
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Linus Torvalds
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311e062ad5 |
CSD-lock diagnostic updates for v6.13
This commit switches from sched_clock() to ktime_get_mono_fast_ns(), which on x86 switches from the rdtsc instruction to the rdtscp instruction, thus avoiding instruction reorderings that cause false-positive reports of CSD-lock stalls of almost 2^46 nanoseconds. These false positives are rare, but really are seen in the wild. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEbK7UrM+RBIrCoViJnr8S83LZ+4wFAmc5XvETHHBhdWxtY2tA a2VybmVsLm9yZwAKCRCevxLzctn7jNUCD/9NqeuxsVcumybbjlHs/IbJt47qTPVk 1O+mpLiKfscw/ndfvqJe1RU+IOUJUPBPzBPUWvZQZ2SzeU03oOI4/szFttDdXSi3 0uI9qOJn3auk2+cdU7CxXOLSiWYEWlMjWvN6d34QeLh7smLkendxH2wo2fkL9kf0 DzvosOrlyNWGZPUQrb1TRW7RKGE7vap8x7tK/p1qMO2xmaPeIX7dfiY38CJC5fjj +n8i1aZIxLFc65I0/Z+nGTMFrktzbYjJik6k++QZzHx+GiXaCkgfidZFspj3uPXW CPa6KxheCrdmFV4A/TVnKYJyutoGeheMjwlVfz0YOSe8J5/N3F9RfDFBYedt2fL+ 11gRpOg5hz61AsyxZ1+iViW0guXoVzn2uwQ5rkou9184fBXPuwH1MAwBcsKYwQig Frd0ZzyrqGHCHwDWtBfAb+qC17b5krsa+fKkjiPFDRDRB5N2hh67tcquOE3wzvrG oAHEZgeFwxZQYGIZ7uITebyThe9NvkBRyrJLvxUEpvF2MoI0yJaqoAwkHieSl1vD KJJ+o+HxVa3D/WCWxTNCjDyxvCMJpFHFWB3h8+hi+X2UleRGrDiIDmIdddMM1/gr meYjZ/c1/t7Y14zwzp/SxUHFJ4U8U2jI23/K5ldJVH34k6XwccU06NYWjHYokXgT ZRMCJ8sAcTtlhw== =8GQJ -----END PGP SIGNATURE----- Merge tag 'csd-lock.2024.11.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull CSD-lock update from Paul McKenney: "This switches from sched_clock() to ktime_get_mono_fast_ns(), which on x86 switches from the rdtsc instruction to the rdtscp instruction, thus avoiding instruction reorderings that cause false-positive reports of CSD-lock stalls of almost 2^46 nanoseconds. These false positives are rare, but really are seen in the wild" * tag 'csd-lock.2024.11.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: locking/csd-lock: Switch from sched_clock() to ktime_get_mono_fast_ns() |
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Linus Torvalds
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d7d4102f0a |
scftorture changes for v6.13
o Avoid divide operation. o Fix cleanup code waiting for IPI handlers. o Move memory allocations out of preempt-disable region of code for PREEMPT_RT compatibility. o Use a lockless list to avoid freeing memory while interrupts are disabled, again for PREEMPT_RT compatibility. o Make lockless list scf_add_to_free_list() correctly handle freeing a NULL pointer. -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEbK7UrM+RBIrCoViJnr8S83LZ+4wFAmc5X0gTHHBhdWxtY2tA a2VybmVsLm9yZwAKCRCevxLzctn7jDVMEACQRdJ0NYxygGFpUzDj2Er2wdOtBG0E n1NOqmNX7nlBL8BzseCFa2OiVbvggE7+ynAGcqISzDLZGE6aa4/HwKLkxSGB62UV WMXNiJE+t4bb1TsdMwLcQnOmmDniy6ID0NIEA8YHEEZltuDNQGQfjB8ynJewwNmY yMU90JDwVvDVmM9+AXUqYYRAar1gR5k7jknQbnXqb+6xT/kMEu+B1z5BGiMB3Z5L LylobI+3OZTY417tgJU/iSeRZbLZn7Xs6pxOcJMpeFvvYMn4mkYaUX+WUOU9oTQd h91wGxRouTQpS41zGNI5HcqnTtevrnmtXNROyUkei1aipvnq8N9HR11UJDXWgSV4 24dH8qZVzTv+/cWIuNA3uUH+hu7kFZztQQQeIJdenm3CBtEYIK4ssrlyXUM7U5AY JQOjeEzApQLht++VTjGSS3CZhODLCTQU+IeQH1ChM1EZz2M9gsv9RqKfXrnFTDnO 6UrLNa2YCpvQCEeNj2i8TaFHZAInGTcNFHjhxd+kA4SsCDygi9PYxKq6xVadLVZs Kwj6kpgPpatQzZ5w7Il9RF+qTgpOnbqB52JFt3rGjQg8uALfDo5S85wurhvu6+GC Qy7XvDWhmUn8fZwvlRO+DABBWOYmXeAVHKxWA3VBxO3O454Pxx5IuVSW4213GFVz 58sAl0WwK8Jscg== =ElHE -----END PGP SIGNATURE----- Merge tag 'scftorture.2024.11.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull scftorture updates from Paul McKenney: - Avoid divide operation - Fix cleanup code waiting for IPI handlers - Move memory allocations out of preempt-disable region of code for PREEMPT_RT compatibility - Use a lockless list to avoid freeing memory while interrupts are disabled, again for PREEMPT_RT compatibility - Make lockless list scf_add_to_free_list() correctly handle freeing a NULL pointer * tag 'scftorture.2024.11.16a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: scftorture: Handle NULL argument passed to scf_add_to_free_list(). scftorture: Use a lock-less list to free memory. scftorture: Move memory allocation outside of preempt_disable region. scftorture: Wait until scf_cleanup_handler() completes. scftorture: Avoid additional div operation. |
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Linus Torvalds
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26c9fdd6f3 |
nolibc changes for 6.13
Changes ------- * Fix potential error due to missing #include on s390 * Compatibility with -Wmissing-fallthrough * Run qemu with more memory during tests -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEbK7UrM+RBIrCoViJnr8S83LZ+4wFAmclJJ4THHBhdWxtY2tA a2VybmVsLm9yZwAKCRCevxLzctn7jDIIEACCBELCRNPpE5RMF/8DDsQ7wiMlQEWS ZLD3ut57m2FBJf1AUTbMMxweNXS5TY/4AZu3tsR0/olFh483GIchvcz5z5kVcetO 4miwhmfsvy4F7XmVoZGFN2nPo8ign+hW4aMVmpC3xzSi5bxGmulcVmmBwV21pVJx 8+xkyXUGAI1/qcuBM56ZxF1b83SkpPBALW5yLK11iHb1CqophoqDx7MpGGExEH4h C2ca4ygXHgstVgmzJF8z4k5M65Ky6mpsi1zO26ixsqurYbNzkrSUjkTSk85Zq+Ee aqvao1sURJ1C+h70gvqmDelErVe4ralhKePneK3LkEbxkWBR7VUMk6kOOq5UhIhr H0rvicVFFvnIrovzsoaEUQLvD5VCdwBdbzK4gb+12PI5D3VQ8VP4nYL/bey8AXNw O+zfvkgZ4IDwffM8RpC4P1lCYC1AyyQ7srwe+juDuPMAfVPYEXZ/cUeFDboDpBHn UIONBpdFqep1/xlGVc9tLm2F+01Z0gbyG52ccFwGK1Q0L2+0q7V9wIh+7qBAi+Jb fiVbz1I/8Z9TCpjDpmUPScZXxEZW4LeCfXH0pjEb6KbDI9fXkCorzOVHes8y+tNl CO28vSZLnDXo89uQshQwr+pj776djkr9d+s2r1WCngIGoivd24evkHyZZ87J88p5 pik3/mLDC9FNfw== =aNvL -----END PGP SIGNATURE----- Merge tag 'nolibc.2024.11.01a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull nolibc updates from Paul McKenney: - Fix potential error due to missing #include on s390 - Compatibility with -Wmissing-fallthrough - Run qemu with more memory during tests * tag 'nolibc.2024.11.01a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: selftests/nolibc: start qemu with 1 GiB of memory tools/nolibc: compiler: add macro __nolibc_fallthrough tools/nolibc: s390: include std.h |
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Linus Torvalds
|
158f238aa6 |
xen: branch for v6.13-rc1
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCZzd0YQAKCRCAXGG7T9hj vm1JAQDBZKpEkPFrxy969YFNCSUiUj42+rDRI3OJt8y0CGTS2AEA53+B+/DYDm8i syw5eaSJv4uohary659ywZUdSljPig4= =MHOT -----END PGP SIGNATURE----- Merge tag 'for-linus-6.13-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen updates from Juergen Gross: - a series for booting as a PVH guest, doing some cleanups after the previous work to make PVH boot code position independent - a fix of the xenbus driver avoiding a leak in an error case * tag 'for-linus-6.13-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen: Fix the issue of resource not being properly released in xenbus_dev_probe() x86/pvh: Avoid absolute symbol references in .head.text x86/xen: Avoid relocatable quantities in Xen ELF notes x86/pvh: Omit needless clearing of phys_base x86/pvh: Use correct size value in GDT descriptor x86/pvh: Call C code via the kernel virtual mapping |
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Linus Torvalds
|
ba1f9c8fe3 |
arm64 updates for 6.13:
* Support for running Linux in a protected VM under the Arm Confidential
Compute Architecture (CCA)
* Guarded Control Stack user-space support. Current patches follow the
x86 ABI of implicitly creating a shadow stack on clone(). Subsequent
patches (already on the list) will add support for clone3() allowing
finer-grained control of the shadow stack size and placement from libc
* AT_HWCAP3 support (not running out of HWCAP2 bits yet but we are
getting close with the upcoming dpISA support)
* Other arch features:
- In-kernel use of the memcpy instructions, FEAT_MOPS (previously only
exposed to user; uaccess support not merged yet)
- MTE: hugetlbfs support and the corresponding kselftests
- Optimise CRC32 using the PMULL instructions
- Support for FEAT_HAFT enabling ARCH_HAS_NONLEAF_PMD_YOUNG
- Optimise the kernel TLB flushing to use the range operations
- POE/pkey (permission overlays): further cleanups after bringing the
signal handler in line with the x86 behaviour for 6.12
* arm64 perf updates:
- Support for the NXP i.MX91 PMU in the existing IMX driver
- Support for Ampere SoCs in the Designware PCIe PMU driver
- Support for Marvell's 'PEM' PCIe PMU present in the 'Odyssey' SoC
- Support for Samsung's 'Mongoose' CPU PMU
- Support for PMUv3.9 finer-grained userspace counter access control
- Switch back to platform_driver::remove() now that it returns 'void'
- Add some missing events for the CXL PMU driver
* Miscellaneous arm64 fixes/cleanups:
- Page table accessors cleanup: type updates, drop unused macros,
reorganise arch_make_huge_pte() and clean up pte_mkcont(), sanity
check addresses before runtime P4D/PUD folding
- Command line override for ID_AA64MMFR0_EL1.ECV (advertising the
FEAT_ECV for the generic timers) allowing Linux to boot with
firmware deployments that don't set SCTLR_EL3.ECVEn
- ACPI/arm64: tighten the check for the array of platform timer
structures and adjust the error handling procedure in
gtdt_parse_timer_block()
- Optimise the cache flush for the uprobes xol slot (skip if no
change) and other uprobes/kprobes cleanups
- Fix the context switching of tpidrro_el0 when kpti is enabled
- Dynamic shadow call stack fixes
- Sysreg updates
- Various arm64 kselftest improvements
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
- Support for running Linux in a protected VM under the Arm
Confidential Compute Architecture (CCA)
- Guarded Control Stack user-space support. Current patches follow the
x86 ABI of implicitly creating a shadow stack on clone(). Subsequent
patches (already on the list) will add support for clone3() allowing
finer-grained control of the shadow stack size and placement from
libc
- AT_HWCAP3 support (not running out of HWCAP2 bits yet but we are
getting close with the upcoming dpISA support)
- Other arch features:
- In-kernel use of the memcpy instructions, FEAT_MOPS (previously
only exposed to user; uaccess support not merged yet)
- MTE: hugetlbfs support and the corresponding kselftests
- Optimise CRC32 using the PMULL instructions
- Support for FEAT_HAFT enabling ARCH_HAS_NONLEAF_PMD_YOUNG
- Optimise the kernel TLB flushing to use the range operations
- POE/pkey (permission overlays): further cleanups after bringing
the signal handler in line with the x86 behaviour for 6.12
- arm64 perf updates:
- Support for the NXP i.MX91 PMU in the existing IMX driver
- Support for Ampere SoCs in the Designware PCIe PMU driver
- Support for Marvell's 'PEM' PCIe PMU present in the 'Odyssey' SoC
- Support for Samsung's 'Mongoose' CPU PMU
- Support for PMUv3.9 finer-grained userspace counter access
control
- Switch back to platform_driver::remove() now that it returns
'void'
- Add some missing events for the CXL PMU driver
- Miscellaneous arm64 fixes/cleanups:
- Page table accessors cleanup: type updates, drop unused macros,
reorganise arch_make_huge_pte() and clean up pte_mkcont(), sanity
check addresses before runtime P4D/PUD folding
- Command line override for ID_AA64MMFR0_EL1.ECV (advertising the
FEAT_ECV for the generic timers) allowing Linux to boot with
firmware deployments that don't set SCTLR_EL3.ECVEn
- ACPI/arm64: tighten the check for the array of platform timer
structures and adjust the error handling procedure in
gtdt_parse_timer_block()
- Optimise the cache flush for the uprobes xol slot (skip if no
change) and other uprobes/kprobes cleanups
- Fix the context switching of tpidrro_el0 when kpti is enabled
- Dynamic shadow call stack fixes
- Sysreg updates
- Various arm64 kselftest improvements
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (168 commits)
arm64: tls: Fix context-switching of tpidrro_el0 when kpti is enabled
kselftest/arm64: Try harder to generate different keys during PAC tests
kselftest/arm64: Don't leak pipe fds in pac.exec_sign_all()
arm64/ptrace: Clarify documentation of VL configuration via ptrace
kselftest/arm64: Corrupt P0 in the irritator when testing SSVE
acpi/arm64: remove unnecessary cast
arm64/mm: Change protval as 'pteval_t' in map_range()
kselftest/arm64: Fix missing printf() argument in gcs/gcs-stress.c
kselftest/arm64: Add FPMR coverage to fp-ptrace
kselftest/arm64: Expand the set of ZA writes fp-ptrace does
kselftets/arm64: Use flag bits for features in fp-ptrace assembler code
kselftest/arm64: Enable build of PAC tests with LLVM=1
kselftest/arm64: Check that SVCR is 0 in signal handlers
selftests/mm: Fix unused function warning for aarch64_write_signal_pkey()
kselftest/arm64: Fix printf() compiler warnings in the arm64 syscall-abi.c tests
kselftest/arm64: Fix printf() warning in the arm64 MTE prctl() test
kselftest/arm64: Fix printf() compiler warnings in the arm64 fp tests
kselftest/arm64: Fix build with stricter assemblers
arm64/scs: Drop unused prototype __pi_scs_patch_vmlinux()
arm64/scs: Deal with 64-bit relative offsets in FDE frames
...
|
||
|
Linus Torvalds
|
9aa4c37f71 |
m68k updates for v6.13
- Revive SCSI and early console support on MVME147,
- Fix early kernel parameters using static keys,
- Prevent and improve handling of kernel configurations that lack
specific platform, CPU, or MMU support, to avoid build failures,
- Miscellaneous fixes and improvements,
- Defconfig updates.
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Merge tag 'm68k-for-v6.13-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven:
- Revive SCSI and early console support on MVME147
- Fix early kernel parameters using static keys
- Prevent and improve handling of kernel configurations that lack
specific platform, CPU, or MMU support, to avoid build failures
- Miscellaneous fixes and improvements
- Defconfig updates
* tag 'm68k-for-v6.13-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: defconfig: Update defconfigs for v6.12-rc1
m68k: mvme147: Reinstate early console
m68k: Make sure NR_IRQS is never zero
m68k: Select M68020 as fallback for classic
m68k: Move Sun 3 into a top-level platform option
m68k: kernel: Use str_read_write() helper function
m68k: Initialize jump labels early during setup_arch()
m68k: mvme147: Fix SCSI controller IRQ numbers
m68k: mvme147: Make mvme147_sched_init() __init
|
||
|
Linus Torvalds
|
ae4336e20b |
just cleanups and fixes
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||
|
Linus Torvalds
|
0338cd9c22 |
s390 updates for 6.13 merge window
- Add firmware sysfs interface which allows user space to retrieve the dump
area size of the machine
- Add 'measurement_chars_full' CHPID sysfs attribute to make the complete
associated Channel-Measurements Characteristics Block available
- Add virtio-mem support
- Move gmap aka KVM page fault handling from the main fault handler to KVM
code. This is the first step to make s390 KVM page fault handling similar
to other architectures. With this first step the main fault handler does
not have any special handling anymore, and therefore convert it to
support LOCK_MM_AND_FIND_VMA
- With gcc 14 s390 support for flag output operand support for inline
assemblies was added. This allows for several optimizations
- Provide a cmpxchg inline assembly which makes use of this, and provide
all variants of arch_try_cmpxchg() so that the compiler can generate
slightly better code
- Convert a few cmpxchg() loops to try_cmpxchg() loops
- Similar to x86 add a CC_OUT() helper macro (and other macros), and
convert all inline assemblies to make use of them, so that depending on
compiler version better code can be generated
- List installed host-key hashes in sysfs if the machine supports the Query
Ultravisor Keys UVC
- Add 'Retrieve Secret' ioctl which allows user space in protected
execution guests to retrieve previously stored secrets from the
Ultravisor
- Add pkey-uv module which supports the conversion of Ultravisor
retrievable secrets to protected keys
- Extend the existing paes cipher to exploit the full AES-XTS hardware
acceleration introduced with message-security assist extension 10
- Convert hopefully all sysfs show functions to use sysfs_emit() so that
the constant flow of such patches stop
- For PCI devices make use of the newly added Topology ID attribute to
enable whole card multi-function support despite the change to PCHID per
port. Additionally improve the overall robustness and usability of
the multifunction support
- Various other small improvements, fixes, and cleanups
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Merge tag 's390-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Heiko Carstens:
- Add firmware sysfs interface which allows user space to retrieve the
dump area size of the machine
- Add 'measurement_chars_full' CHPID sysfs attribute to make the
complete associated Channel-Measurements Characteristics Block
available
- Add virtio-mem support
- Move gmap aka KVM page fault handling from the main fault handler to
KVM code. This is the first step to make s390 KVM page fault handling
similar to other architectures. With this first step the main fault
handler does not have any special handling anymore, and therefore
convert it to support LOCK_MM_AND_FIND_VMA
- With gcc 14 s390 support for flag output operand support for inline
assemblies was added. This allows for several optimizations:
- Provide a cmpxchg inline assembly which makes use of this, and
provide all variants of arch_try_cmpxchg() so that the compiler
can generate slightly better code
- Convert a few cmpxchg() loops to try_cmpxchg() loops
- Similar to x86 add a CC_OUT() helper macro (and other macros),
and convert all inline assemblies to make use of them, so that
depending on compiler version better code can be generated
- List installed host-key hashes in sysfs if the machine supports the
Query Ultravisor Keys UVC
- Add 'Retrieve Secret' ioctl which allows user space in protected
execution guests to retrieve previously stored secrets from the
Ultravisor
- Add pkey-uv module which supports the conversion of Ultravisor
retrievable secrets to protected keys
- Extend the existing paes cipher to exploit the full AES-XTS hardware
acceleration introduced with message-security assist extension 10
- Convert hopefully all sysfs show functions to use sysfs_emit() so
that the constant flow of such patches stop
- For PCI devices make use of the newly added Topology ID attribute to
enable whole card multi-function support despite the change to PCHID
per port. Additionally improve the overall robustness and usability
of the multifunction support
- Various other small improvements, fixes, and cleanups
* tag 's390-6.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (133 commits)
s390/cio/ioasm: Convert to use flag output macros
s390/cio/qdio: Convert to use flag output macros
s390/sclp: Convert to use flag output macros
s390/dasd: Convert to use flag output macros
s390/boot/physmem: Convert to use flag output macros
s390/pci: Convert to use flag output macros
s390/kvm: Convert to use flag output macros
s390/extmem: Convert to use flag output macros
s390/string: Convert to use flag output macros
s390/diag: Convert to use flag output macros
s390/irq: Convert to use flag output macros
s390/smp: Convert to use flag output macros
s390/uv: Convert to use flag output macros
s390/pai: Convert to use flag output macros
s390/mm: Convert to use flag output macros
s390/cpu_mf: Convert to use flag output macros
s390/cpcmd: Convert to use flag output macros
s390/topology: Convert to use flag output macros
s390/time: Convert to use flag output macros
s390/pageattr: Convert to use flag output macros
...
|
||
|
Linus Torvalds
|
5591fd5e03 |
lsm/stable-6.13 PR 20241112
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||
|
Linus Torvalds
|
8ffc7dbce2 |
selinux/stable-6.13 PR 20241112
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||
|
Linus Torvalds
|
a8220b0ca7 |
audit/stable-6.13 PR 20241112
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||
|
Linus Torvalds
|
8350142a4b |
for-6.13/io_uring-20241118
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