65299 Commits

Author SHA1 Message Date
Linus Torvalds
bc6cb4d5bc Locking changes for v6.5:
- Introduce cmpxchg128() -- aka. the demise of cmpxchg_double().
 
   The cmpxchg128() family of functions is basically & functionally
   the same as cmpxchg_double(), but with a saner interface: instead
   of a 6-parameter horror that forced u128 - u64/u64-halves layout
   details on the interface and exposed users to complexity,
   fragility & bugs, use a natural 3-parameter interface with u128 types.
 
 - Restructure the generated atomic headers, and add
   kerneldoc comments for all of the generic atomic{,64,_long}_t
   operations. Generated definitions are much cleaner now,
   and come with documentation.
 
 - Implement lock_set_cmp_fn() on lockdep, for defining an ordering
   when taking multiple locks of the same type. This gets rid of
   one use of lockdep_set_novalidate_class() in the bcache code.
 
 - Fix raw_cpu_generic_try_cmpxchg() bug due to an unintended
   variable shadowing generating garbage code on Clang on certain
   ARM builds.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2023-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking updates from Ingo Molnar:

 - Introduce cmpxchg128() -- aka. the demise of cmpxchg_double()

   The cmpxchg128() family of functions is basically & functionally the
   same as cmpxchg_double(), but with a saner interface.

   Instead of a 6-parameter horror that forced u128 - u64/u64-halves
   layout details on the interface and exposed users to complexity,
   fragility & bugs, use a natural 3-parameter interface with u128
   types.

 - Restructure the generated atomic headers, and add kerneldoc comments
   for all of the generic atomic{,64,_long}_t operations.

   The generated definitions are much cleaner now, and come with
   documentation.

 - Implement lock_set_cmp_fn() on lockdep, for defining an ordering when
   taking multiple locks of the same type.

   This gets rid of one use of lockdep_set_novalidate_class() in the
   bcache code.

 - Fix raw_cpu_generic_try_cmpxchg() bug due to an unintended variable
   shadowing generating garbage code on Clang on certain ARM builds.

* tag 'locking-core-2023-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (43 commits)
  locking/atomic: scripts: fix ${atomic}_dec_if_positive() kerneldoc
  percpu: Fix self-assignment of __old in raw_cpu_generic_try_cmpxchg()
  locking/atomic: treewide: delete arch_atomic_*() kerneldoc
  locking/atomic: docs: Add atomic operations to the driver basic API documentation
  locking/atomic: scripts: generate kerneldoc comments
  docs: scripts: kernel-doc: accept bitwise negation like ~@var
  locking/atomic: scripts: simplify raw_atomic*() definitions
  locking/atomic: scripts: simplify raw_atomic_long*() definitions
  locking/atomic: scripts: split pfx/name/sfx/order
  locking/atomic: scripts: restructure fallback ifdeffery
  locking/atomic: scripts: build raw_atomic_long*() directly
  locking/atomic: treewide: use raw_atomic*_<op>()
  locking/atomic: scripts: add trivial raw_atomic*_<op>()
  locking/atomic: scripts: factor out order template generation
  locking/atomic: scripts: remove leftover "${mult}"
  locking/atomic: scripts: remove bogus order parameter
  locking/atomic: xtensa: add preprocessor symbols
  locking/atomic: x86: add preprocessor symbols
  locking/atomic: sparc: add preprocessor symbols
  locking/atomic: sh: add preprocessor symbols
  ...
2023-06-27 14:14:30 -07:00
Linus Torvalds
ed3b7923a8 Scheduler changes for v6.5:
- Scheduler SMP load-balancer improvements:
 
     - Avoid unnecessary migrations within SMT domains on hybrid systems.
 
       Problem:
 
         On hybrid CPU systems, (processors with a mixture of higher-frequency
 	SMT cores and lower-frequency non-SMT cores), under the old code
 	lower-priority CPUs pulled tasks from the higher-priority cores if
 	more than one SMT sibling was busy - resulting in many unnecessary
 	task migrations.
 
       Solution:
 
         The new code improves the load balancer to recognize SMT cores with more
         than one busy sibling and allows lower-priority CPUs to pull tasks, which
         avoids superfluous migrations and lets lower-priority cores inspect all SMT
         siblings for the busiest queue.
 
     - Implement the 'runnable boosting' feature in the EAS balancer: consider CPU
       contention in frequency, EAS max util & load-balance busiest CPU selection.
 
       This improves CPU utilization for certain workloads, while leaves other key
       workloads unchanged.
 
 - Scheduler infrastructure improvements:
 
     - Rewrite the scheduler topology setup code by consolidating it
       into the build_sched_topology() helper function and building
       it dynamically on the fly.
 
     - Resolve the local_clock() vs. noinstr complications by rewriting
       the code: provide separate sched_clock_noinstr() and
       local_clock_noinstr() functions to be used in instrumentation code,
       and make sure it is all instrumentation-safe.
 
 - Fixes:
 
     - Fix a kthread_park() race with wait_woken()
 
     - Fix misc wait_task_inactive() bugs unearthed by the -rt merge:
        - Fix UP PREEMPT bug by unifying the SMP and UP implementations.
        - Fix task_struct::saved_state handling.
 
     - Fix various rq clock update bugs, unearthed by turning on the rq clock
       debugging code.
 
     - Fix the PSI WINDOW_MIN_US trigger limit, which was easy to trigger by
       creating enough cgroups, by removing the warnign and restricting
       window size triggers to PSI file write-permission or CAP_SYS_RESOURCE.
 
     - Propagate SMT flags in the topology when removing degenerate domain
 
     - Fix grub_reclaim() calculation bug in the deadline scheduler code
 
     - Avoid resetting the min update period when it is unnecessary, in
       psi_trigger_destroy().
 
     - Don't balance a task to its current running CPU in load_balance(),
       which was possible on certain NUMA topologies with overlapping
       groups.
 
     - Fix the sched-debug printing of rq->nr_uninterruptible
 
 - Cleanups:
 
     - Address various -Wmissing-prototype warnings, as a preparation
       to (maybe) enable this warning in the future.
 
     - Remove unused code
 
     - Mark more functions __init
 
     - Fix shadow-variable warnings
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2023-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler updates from Ingo Molnar:
 "Scheduler SMP load-balancer improvements:

   - Avoid unnecessary migrations within SMT domains on hybrid systems.

     Problem:

        On hybrid CPU systems, (processors with a mixture of
        higher-frequency SMT cores and lower-frequency non-SMT cores),
        under the old code lower-priority CPUs pulled tasks from the
        higher-priority cores if more than one SMT sibling was busy -
        resulting in many unnecessary task migrations.

     Solution:

        The new code improves the load balancer to recognize SMT cores
        with more than one busy sibling and allows lower-priority CPUs
        to pull tasks, which avoids superfluous migrations and lets
        lower-priority cores inspect all SMT siblings for the busiest
        queue.

   - Implement the 'runnable boosting' feature in the EAS balancer:
     consider CPU contention in frequency, EAS max util & load-balance
     busiest CPU selection.

     This improves CPU utilization for certain workloads, while leaves
     other key workloads unchanged.

  Scheduler infrastructure improvements:

   - Rewrite the scheduler topology setup code by consolidating it into
     the build_sched_topology() helper function and building it
     dynamically on the fly.

   - Resolve the local_clock() vs. noinstr complications by rewriting
     the code: provide separate sched_clock_noinstr() and
     local_clock_noinstr() functions to be used in instrumentation code,
     and make sure it is all instrumentation-safe.

  Fixes:

   - Fix a kthread_park() race with wait_woken()

   - Fix misc wait_task_inactive() bugs unearthed by the -rt merge:
       - Fix UP PREEMPT bug by unifying the SMP and UP implementations
       - Fix task_struct::saved_state handling

   - Fix various rq clock update bugs, unearthed by turning on the rq
     clock debugging code.

   - Fix the PSI WINDOW_MIN_US trigger limit, which was easy to trigger
     by creating enough cgroups, by removing the warnign and restricting
     window size triggers to PSI file write-permission or
     CAP_SYS_RESOURCE.

   - Propagate SMT flags in the topology when removing degenerate domain

   - Fix grub_reclaim() calculation bug in the deadline scheduler code

   - Avoid resetting the min update period when it is unnecessary, in
     psi_trigger_destroy().

   - Don't balance a task to its current running CPU in load_balance(),
     which was possible on certain NUMA topologies with overlapping
     groups.

   - Fix the sched-debug printing of rq->nr_uninterruptible

  Cleanups:

   - Address various -Wmissing-prototype warnings, as a preparation to
     (maybe) enable this warning in the future.

   - Remove unused code

   - Mark more functions __init

   - Fix shadow-variable warnings"

* tag 'sched-core-2023-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (50 commits)
  sched/core: Avoid multiple calling update_rq_clock() in __cfsb_csd_unthrottle()
  sched/core: Avoid double calling update_rq_clock() in __balance_push_cpu_stop()
  sched/core: Fixed missing rq clock update before calling set_rq_offline()
  sched/deadline: Update GRUB description in the documentation
  sched/deadline: Fix bandwidth reclaim equation in GRUB
  sched/wait: Fix a kthread_park race with wait_woken()
  sched/topology: Mark set_sched_topology() __init
  sched/fair: Rename variable cpu_util eff_util
  arm64/arch_timer: Fix MMIO byteswap
  sched/fair, cpufreq: Introduce 'runnable boosting'
  sched/fair: Refactor CPU utilization functions
  cpuidle: Use local_clock_noinstr()
  sched/clock: Provide local_clock_noinstr()
  x86/tsc: Provide sched_clock_noinstr()
  clocksource: hyper-v: Provide noinstr sched_clock()
  clocksource: hyper-v: Adjust hv_read_tsc_page_tsc() to avoid special casing U64_MAX
  x86/vdso: Fix gettimeofday masking
  math64: Always inline u128 version of mul_u64_u64_shr()
  s390/time: Provide sched_clock_noinstr()
  loongarch: Provide noinstr sched_clock_read()
  ...
2023-06-27 14:03:21 -07:00
Linus Torvalds
dc43fc753b - A serious scrubbing of the MTRR code including adding a new map
mechanism in order to look up the memory type of a region easily. Also
   address memory range lookup issues like returning an invalid memory
   type. Furthermore, this handles the decoupling of PAT from MTRR more
   naturally. All work by Juergen Gross
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Merge tag 'x86_mtrr_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 mtrr updates from Borislav Petkov:
 "A serious scrubbing of the MTRR code including adding a new map
  mechanism in order to look up the memory type of a region easily.

  Also address memory range lookup issues like returning an invalid
  memory type. Furthermore, this handles the decoupling of PAT from MTRR
  more naturally.

  All work by Juergen Gross"

* tag 'x86_mtrr_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/xen: Set default memory type for PV guests to WB
  x86/mtrr: Unify debugging printing
  x86/mtrr: Remove unused code
  x86/mm: Only check uniform after calling mtrr_type_lookup()
  x86/mtrr: Don't let mtrr_type_lookup() return MTRR_TYPE_INVALID
  x86/mtrr: Use new cache_map in mtrr_type_lookup()
  x86/mtrr: Add mtrr=debug command line option
  x86/mtrr: Construct a memory map with cache modes
  x86/mtrr: Add get_effective_type() service function
  x86/mtrr: Allocate mtrr_value array dynamically
  x86/mtrr: Move 32-bit code from mtrr.c to legacy.c
  x86/mtrr: Have only one set_mtrr() variant
  x86/mtrr: Replace vendor tests in MTRR code
  x86/xen: Set MTRR state when running as Xen PV initial domain
  x86/hyperv: Set MTRR state when running as SEV-SNP Hyper-V guest
  x86/mtrr: Support setting MTRR state for software defined MTRRs
  x86/mtrr: Replace size_or_mask and size_and_mask with a much easier concept
  x86/mtrr: Remove physical address size calculation
2023-06-27 13:11:32 -07:00
Linus Torvalds
04fc8904d5 Move the Arm architecture documentation under Documentation/arch/. This
brings some order to the documentation directory, declutters the top-level
 directory, and makes the documentation organization more closely match that
 of the source.
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Merge tag 'docs-arm-move' of git://git.lwn.net/linux

Pull arm documentation move from Jonathan Corbet:
 "Move the Arm architecture documentation under Documentation/arch/.

  This brings some order to the documentation directory, declutters the
  top-level directory, and makes the documentation organization more
  closely match that of the source"

* tag 'docs-arm-move' of git://git.lwn.net/linux:
  dt-bindings: Update Documentation/arm references
  docs: update some straggling Documentation/arm references
  crypto: update some Arm documentation references
  mips: update a reference to a moved Arm Document
  arm64: Update Documentation/arm references
  arm: update in-source documentation references
  arm: docs: Move Arm documentation to Documentation/arch/
2023-06-27 11:58:16 -07:00
Linus Torvalds
a354049532 It's been a relatively calm cycle in docsland. We do have:
- Some initial page-table documentation from Linus (the other Linus)
 
 - Regression-handling documentation improvements from Thorsten
 
 - Addition of kerneldoc documentation for the ERR_PTR() and related
   macros from James Seo
 
 ...and the usual collection of fixes and updates.
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Merge tag 'docs-6.5' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "It's been a relatively calm cycle in docsland. We do have:

   - Some initial page-table documentation from Linus (the other Linus)

   - Regression-handling documentation improvements from Thorsten

   - Addition of kerneldoc documentation for the ERR_PTR() and related
     macros from James Seo

  ... and the usual collection of fixes and updates"

* tag 'docs-6.5' of git://git.lwn.net/linux:
  docs: consolidate storage interfaces
  Documentation: update git configuration for Link: tag
  Documentation: KVM: make corrections to vcpu-requests.rst
  Documentation: KVM: make corrections to ppc-pv.rst
  Documentation: KVM: make corrections to locking.rst
  Documentation: KVM: make corrections to halt-polling.rst
  Documentation: virt: correct location of haltpoll module params
  Documentation/mm: Initial page table documentation
  docs: crypto: async-tx-api: fix typo in struct name
  docs/doc-guide: Clarify how to write tables
  docs: handling-regressions: rework section about fixing procedures
  docs: process: fix a typoed cross-reference
  docs: submitting-patches: Discuss interleaved replies
  MAINTAINERS: direct process doc changes to a dedicated ML
  Documentation: core-api: Add error pointer functions to kernel-api
  err.h: Add missing kerneldocs for error pointer functions
  Documentation: conf.py: Add __force to c_id_attributes
  docs: clarify KVM related kernel parameters' descriptions
  docs: consolidate human interface subsystems
  docs: admin-guide: Add information about intel_pstate active mode
2023-06-27 11:33:47 -07:00
Linus Torvalds
dedbf31ac8 linux-kselftest-next-6.5-rc1
This kselftest update for Linux 6.5-rc1 consists of:
 
 - change to allow runners to override the timeout
   This change is made to avoid future increases of long
   timeouts
 - several other spelling and cleanups
 - a new subtest to video_device_test
 - enhancements to test coverage in clone3 test
 - other fixes to ftrace and cpufreq tests
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Merge tag 'linux-kselftest-next-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest updates from Shuah Khan:

 - allow runners to override the timeout

   This change is made to avoid future increases of long timeouts

 - several other spelling and cleanups

 - a new subtest to video_device_test

 - enhancements to test coverage in clone3 test

 - other fixes to ftrace and cpufreq tests

* tag 'linux-kselftest-next-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/ftace: Fix KTAP output ordering
  selftests/cpufreq: Don't enable generic lock debugging options
  kselftests: Sort the collections list to avoid duplicate tests
  selftest: pidfd: Omit long and repeating outputs
  selftests: allow runners to override the timeout
  selftests/ftrace: Add new test case which checks for optimized probes
  selftests/clone3: test clone3 with exit signal in flags
  kselftest: vDSO: Fix accumulation of uninitialized ret when CLOCK_REALTIME is undefined
  selftests: prctl: Fix spelling mistake "anonynous" -> "anonymous"
  selftests: media_tests: Add new subtest to video_device_test
2023-06-27 11:28:56 -07:00
Linus Torvalds
9ba92dc1de linux-kselftest-kunit-6.5-rc1
This KUnit update for Linux 6.5-rc1 consists of:
 
 - kunit_add_action() API to defer a call until test exit.
 - Update document to add kunit_add_action() usage notes.
 - Changes to always run cleanup from a test kthread.
 - Documentation updates to clarify cleanup usage
   - assertions should not be used in cleanup
 - Documentation update to clearly indicate that exit
   functions should run even if init fails
 - Several fixes and enhancements to existing tests.
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Merge tag 'linux-kselftest-kunit-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull KUnit updates from Shuah Khan:

 - kunit_add_action() API to defer a call until test exit

 - Update document to add kunit_add_action() usage notes

 - Changes to always run cleanup from a test kthread

 - Documentation updates to clarify cleanup usage (assertions should not
   be used in cleanup)

 - Documentation update to clearly indicate that exit functions should
   run even if init fails

 - Several fixes and enhancements to existing tests

* tag 'linux-kselftest-kunit-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  MAINTAINERS: Add source tree entry for kunit
  Documentation: kunit: Rename references to kunit_abort()
  kunit: Move kunit_abort() call out of kunit_do_failed_assertion()
  kunit: Fix obsolete name in documentation headers (func->action)
  Documentation: Kunit: add MODULE_LICENSE to sample code
  kunit: Update kunit_print_ok_not_ok function
  kunit: Fix reporting of the skipped parameterized tests
  kunit/test: Add example test showing parameterized testing
  Documentation: kunit: Add usage notes for kunit_add_action()
  kunit: kmalloc_array: Use kunit_add_action()
  kunit: executor_test: Use kunit_add_action()
  kunit: Add kunit_add_action() to defer a call until test exit
  kunit: example: Provide example exit functions
  Documentation: kunit: Warn that exit functions run even if init fails
  Documentation: kunit: Note that assertions should not be used in cleanup
  kunit: Always run cleanup from a test kthread
  Documentation: kunit: Modular tests should not depend on KUNIT=y
  kunit: tool: undo type subscripts for subprocess.Popen
2023-06-27 11:12:55 -07:00
Linus Torvalds
af96134dc8 RCU pull request for v6.5
This pull contains the following branches:
 
 doc.2023.05.10a: Documentation updates
 
 fixes.2023.05.11a: Miscellaneous fixes, perhaps most notably:
 
 o	Remove RCU_NONIDLE().  The new visibility of most of the idle
 	loop to RCU has obsoleted this API.
 
 o	Make the RCU_SOFTIRQ callback-invocation time limit also apply
 	to the rcuc kthreads that invoke callbacks for CONFIG_PREEMPT_RT.
 
 o	Add a jiffies-based callback-invocation time limit to handle
 	long-running callbacks.  (The local_clock() function is only
 	invoked once per 32 callbacks due to its high overhead.)
 
 o	Stop rcu_tasks_invoke_cbs() from using never-onlined CPUs,
 	which fixes a bug that can occur on systems with non-contiguous
 	CPU numbering.
 
 kvfree.2023.05.10a: kvfree_rcu updates
 
 o	Eliminate the single-argument variant of k[v]free_rcu() now
 	that all uses have been converted to k[v]free_rcu_mightsleep().
 
 o	Add WARN_ON_ONCE() checks for k[v]free_rcu*() freeing callbacks
 	too soon.  Yes, this is closing the barn door after the horse
 	has escaped, but Murphy says that there will be more horses.
 
 nocb.2023.05.11a: Callback-offloading updates
 
 o	Fix a number of bugs involving the shrinker and lazy callbacks.
 
 rcu-tasks.2023.05.10a: Tasks RCU updates
 
 torture.2023.05.15a: Torture-test updates
 
 rcu-urgent.2023.06.06a: Urgent SRCU fix (already pulled)
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Merge tag 'rcu.2023.06.22a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull RCU updates from Paul McKenney:
 "Documentation updates

  Miscellaneous fixes, perhaps most notably:

   - Remove RCU_NONIDLE(). The new visibility of most of the idle loop
     to RCU has obsoleted this API.

   - Make the RCU_SOFTIRQ callback-invocation time limit also apply to
     the rcuc kthreads that invoke callbacks for CONFIG_PREEMPT_RT.

   - Add a jiffies-based callback-invocation time limit to handle
     long-running callbacks. (The local_clock() function is only invoked
     once per 32 callbacks due to its high overhead.)

   - Stop rcu_tasks_invoke_cbs() from using never-onlined CPUs, which
     fixes a bug that can occur on systems with non-contiguous CPU
     numbering.

  kvfree_rcu updates:

   - Eliminate the single-argument variant of k[v]free_rcu() now that
     all uses have been converted to k[v]free_rcu_mightsleep().

   - Add WARN_ON_ONCE() checks for k[v]free_rcu*() freeing callbacks too
     soon. Yes, this is closing the barn door after the horse has
     escaped, but Murphy says that there will be more horses.

  Callback-offloading updates:

   - Fix a number of bugs involving the shrinker and lazy callbacks.

  Tasks RCU updates

  Torture-test updates"

* tag 'rcu.2023.06.22a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (32 commits)
  torture: Remove duplicated argument -enable-kvm for ppc64
  doc/rcutorture: Add description of rcutorture.stall_cpu_block
  rcu/rcuscale: Stop kfree_scale_thread thread(s) after unloading rcuscale
  rcu/rcuscale: Move rcu_scale_*() after kfree_scale_cleanup()
  rcutorture: Correct name of use_softirq module parameter
  locktorture: Add long_hold to adjust lock-hold delays
  rcu/nocb: Make shrinker iterate only over NOCB CPUs
  rcu-tasks: Stop rcu_tasks_invoke_cbs() from using never-onlined CPUs
  rcu: Make rcu_cpu_starting() rely on interrupts being disabled
  rcu: Mark rcu_cpu_kthread() accesses to ->rcu_cpu_has_work
  rcu: Mark additional concurrent load from ->cpu_no_qs.b.exp
  rcu: Employ jiffies-based backstop to callback time limit
  rcu: Check callback-invocation time limit for rcuc kthreads
  rcu: Remove RCU_NONIDLE()
  rcu: Add more RCU files to kernel-api.rst
  rcu-tasks: Clarify the cblist_init_generic() function's pr_info() output
  rcu-tasks: Avoid pr_info() with spin lock in cblist_init_generic()
  rcu/nocb: Recheck lazy callbacks under the ->nocb_lock from shrinker
  rcu/nocb: Fix shrinker race against callback enqueuer
  rcu/nocb: Protect lazy shrinker against concurrent (de-)offloading
  ...
2023-06-27 10:37:01 -07:00
Linus Torvalds
8d7868c41d Thermal control updates for 6.5-rc1
- Add new IOCTLs to the int340x thermal driver to allow user space to
    retrieve the Passive v2 thermal table (Srinivas Pandruvada).
 
  - Add DT bindings for SM6375, MSM8226 and QCM2290 Qcom platforms (Konrad
    Dybcio).
 
  - Add DT bindings and support for QCom MSM8226 (Matti Lehtimäki).
 
  - Add DT bindings for QCom ipq9574 (Praveenkumar I).
 
  - Convert bcm2835 DT bindings to the yaml schema (Stefan Wahren).
 
  - Allow selecting the bang-bang governor as default (Thierry Reding).
 
  - Refactor and prepare the code to set the scene for RCar Gen4 (Wolfram
    Sang).
 
  - Clean up and fix the QCom tsens drivers. Add DT bindings and
    calibration for the MSM8909 platform (Stephan Gerhold).
 
  - Revert a patch introducing a wrong usage of devm_of_iomap() on the
    Mediatek platform (Ricardo Cañuelo).
 
  - Fix the clock vs reset ordering in order to conform to the
    documentation on the sun8i (Christophe JAILLET).
 
  - Prevent setting up undocumented registers, enable the only described
    sensors and add the version 2.1 on the Qoriq sensor (Peng Fan).
 
  - Add DT bindings and support for the Armada AP807 (Alex Leibovich).
 
  - Update the mlx5 driver with the recent thermal changes (Daniel
    Lezcano).
 
  - Convert to platform remove callback returning void on STM32 (Uwe
    Kleine-König).
 
  - Add an error information printing for devm_thermal_add_hwmon_sysfs()
    and remove the error from the Sun8i, Amlogic, i.MX, TI, K3, Tegra,
    Qoriq, Mediateka and QCom (Yangtao Li).
 
  - Register as hwmon sensor for the Generic ADC (Chen-Yu Tsai).
 
  - Use the dev_err_probe() function in the QCom tsens alarm driver (Luca
    Weiss).
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Merge tag 'thermal-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control updates from Rafael Wysocki:
 "These extend the int340x thermal driver, add thermal DT bindings for
  some Qcom platforms, add DT bindings and support for Armada AP807 and
  MSM8909, allow selecting the bang-bang thermal governor as the default
  one, address issues in several thermal drivers for ARM platforms and
  clean up code.

  Specifics:

   - Add new IOCTLs to the int340x thermal driver to allow user space to
     retrieve the Passive v2 thermal table (Srinivas Pandruvada)

   - Add DT bindings for SM6375, MSM8226 and QCM2290 Qcom platforms
     (Konrad Dybcio)

   - Add DT bindings and support for QCom MSM8226 (Matti Lehtimäki)

   - Add DT bindings for QCom ipq9574 (Praveenkumar I)

   - Convert bcm2835 DT bindings to the yaml schema (Stefan Wahren)

   - Allow selecting the bang-bang governor as default (Thierry Reding)

   - Refactor and prepare the code to set the scene for RCar Gen4
     (Wolfram Sang)

   - Clean up and fix the QCom tsens drivers. Add DT bindings and
     calibration for the MSM8909 platform (Stephan Gerhold)

   - Revert a patch introducing a wrong usage of devm_of_iomap() on the
     Mediatek platform (Ricardo Cañuelo)

   - Fix the clock vs reset ordering in order to conform to the
     documentation on the sun8i (Christophe JAILLET)

   - Prevent setting up undocumented registers, enable the only
     described sensors and add the version 2.1 on the Qoriq sensor (Peng
     Fan)

   - Add DT bindings and support for the Armada AP807 (Alex Leibovich)

   - Update the mlx5 driver with the recent thermal changes (Daniel
     Lezcano)

   - Convert to platform remove callback returning void on STM32 (Uwe
     Kleine-König)

   - Add an error information printing for devm_thermal_add_hwmon_sysfs()
     and remove the error from the Sun8i, Amlogic, i.MX, TI, K3, Tegra,
     Qoriq, Mediateka and QCom (Yangtao Li)

   - Register as hwmon sensor for the Generic ADC (Chen-Yu Tsai)

   - Use the dev_err_probe() function in the QCom tsens alarm driver
     (Luca Weiss)"

* tag 'thermal-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (39 commits)
  thermal/drivers/qcom/temp-alarm: Use dev_err_probe
  thermal/drivers/generic-adc: Register thermal zones as hwmon sensors
  thermal/drivers/mediatek/lvts_thermal: Remove redundant msg in lvts_ctrl_start()
  thermal/drivers/qcom: Remove redundant msg at probe time
  thermal/drivers/ti-soc: Remove redundant msg in ti_thermal_expose_sensor()
  thermal/drivers/qoriq: Remove redundant msg in qoriq_tmu_register_tmu_zone()
  thermal/drivers/tegra: Remove redundant msg in tegra_tsensor_register_channel()
  drivers/thermal/k3: Remove redundant msg in k3_bandgap_probe()
  thermal/drivers/imx: Remove redundant msg in imx8mm_tmu_probe() and imx_sc_thermal_probe()
  thermal/drivers/amlogic: Remove redundant msg in amlogic_thermal_probe()
  thermal/drivers/sun8i: Remove redundant msg in sun8i_ths_register()
  thermal/hwmon: Add error information printing for devm_thermal_add_hwmon_sysfs()
  thermal/drivers/stm32: Convert to platform remove callback returning void
  net/mlx5: Update the driver with the recent thermal changes
  thermal/drivers/armada: Add support for AP807 thermal data
  dt-bindings: armada-thermal: Add armada-ap807-thermal compatible
  thermal/drivers/qoriq: Support version 2.1
  thermal/drivers/qoriq: Only enable supported sensors
  thermal/drivers/qoriq: No need to program site adjustment register
  thermal/drivers/mediatek/lvts_thermal: Register thermal zones as hwmon sensors
  ...
2023-06-26 19:41:26 -07:00
Linus Torvalds
2605e80d34 arm64 updates for 6.5:
- Support for the Armv8.9 Permission Indirection Extensions. While this
   feature doesn't add new functionality, it enables future support for
   Guarded Control Stacks (GCS) and Permission Overlays.
 
 - User-space support for the Armv8.8 memcpy/memset instructions.
 
 - arm64 perf: support the HiSilicon SoC uncore PMU, Arm CMN sysfs
   identifier, support for the NXP i.MX9 SoC DDRC PMU, fixes and
   cleanups.
 
 - Removal of superfluous ISBs on context switch (following retrospective
   architecture tightening).
 
 - Decode the ISS2 register during faults for additional information to
   help with debugging.
 
 - KPTI clean-up/simplification of the trampoline exit code.
 
 - Addressing several -Wmissing-prototype warnings.
 
 - Kselftest improvements for signal handling and ptrace.
 
 - Fix TPIDR2_EL0 restoring on sigreturn
 
 - Clean-up, robustness improvements of the module allocation code.
 
 - More sysreg conversions to the automatic register/bitfields
   generation.
 
 - CPU capabilities handling cleanup.
 
 - Arm documentation updates: ACPI, ptdump.
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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:
 "Notable features are user-space support for the memcpy/memset
  instructions and the permission indirection extension.

   - Support for the Armv8.9 Permission Indirection Extensions. While
     this feature doesn't add new functionality, it enables future
     support for Guarded Control Stacks (GCS) and Permission Overlays

   - User-space support for the Armv8.8 memcpy/memset instructions

   - arm64 perf: support the HiSilicon SoC uncore PMU, Arm CMN sysfs
     identifier, support for the NXP i.MX9 SoC DDRC PMU, fixes and
     cleanups

   - Removal of superfluous ISBs on context switch (following
     retrospective architecture tightening)

   - Decode the ISS2 register during faults for additional information
     to help with debugging

   - KPTI clean-up/simplification of the trampoline exit code

   - Addressing several -Wmissing-prototype warnings

   - Kselftest improvements for signal handling and ptrace

   - Fix TPIDR2_EL0 restoring on sigreturn

   - Clean-up, robustness improvements of the module allocation code

   - More sysreg conversions to the automatic register/bitfields
     generation

   - CPU capabilities handling cleanup

   - Arm documentation updates: ACPI, ptdump"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (124 commits)
  kselftest/arm64: Add a test case for TPIDR2 restore
  arm64/signal: Restore TPIDR2 register rather than memory state
  arm64: alternatives: make clean_dcache_range_nopatch() noinstr-safe
  Documentation/arm64: Add ptdump documentation
  arm64: hibernate: remove WARN_ON in save_processor_state
  kselftest/arm64: Log signal code and address for unexpected signals
  docs: perf: Fix warning from 'make htmldocs' in hisi-pmu.rst
  arm64/fpsimd: Exit streaming mode when flushing tasks
  docs: perf: Add new description for HiSilicon UC PMU
  drivers/perf: hisi: Add support for HiSilicon UC PMU driver
  drivers/perf: hisi: Add support for HiSilicon H60PA and PAv3 PMU driver
  perf: arm_cspmu: Add missing MODULE_DEVICE_TABLE
  perf/arm-cmn: Add sysfs identifier
  perf/arm-cmn: Revamp model detection
  perf/arm_dmc620: Add cpumask
  arm64: mm: fix VA-range sanity check
  arm64/mm: remove now-superfluous ISBs from TTBR writes
  Documentation/arm64: Update ACPI tables from BBR
  Documentation/arm64: Update references in arm-acpi
  Documentation/arm64: Update ARM and arch reference
  ...
2023-06-26 17:11:53 -07:00
Linus Torvalds
19300488c9 - Address -Wmissing-prototype warnings
- Remove repeated 'the' in comments
  - Remove unused current_untag_mask()
  - Document urgent tip branch timing
  - Clean up MSR kernel-doc notation
  - Clean up paravirt_ops doc
  - Update Srivatsa S. Bhat's maintained areas
  - Remove unused extern declaration acpi_copy_wakeup_routine()
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Merge tag 'x86_cleanups_for_6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cleanups from Dave Hansen:
 "As usual, these are all over the map. The biggest cluster is work from
  Arnd to eliminate -Wmissing-prototype warnings:

   - Address -Wmissing-prototype warnings

   - Remove repeated 'the' in comments

   - Remove unused current_untag_mask()

   - Document urgent tip branch timing

   - Clean up MSR kernel-doc notation

   - Clean up paravirt_ops doc

   - Update Srivatsa S. Bhat's maintained areas

   - Remove unused extern declaration acpi_copy_wakeup_routine()"

* tag 'x86_cleanups_for_6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
  x86/acpi: Remove unused extern declaration acpi_copy_wakeup_routine()
  Documentation: virt: Clean up paravirt_ops doc
  x86/mm: Remove unused current_untag_mask()
  x86/mm: Remove repeated word in comments
  x86/lib/msr: Clean up kernel-doc notation
  x86/platform: Avoid missing-prototype warnings for OLPC
  x86/mm: Add early_memremap_pgprot_adjust() prototype
  x86/usercopy: Include arch_wb_cache_pmem() declaration
  x86/vdso: Include vdso/processor.h
  x86/mce: Add copy_mc_fragile_handle_tail() prototype
  x86/fbdev: Include asm/fb.h as needed
  x86/hibernate: Declare global functions in suspend.h
  x86/entry: Add do_SYSENTER_32() prototype
  x86/quirks: Include linux/pnp.h for arch_pnpbios_disabled()
  x86/mm: Include asm/numa.h for set_highmem_pages_init()
  x86: Avoid missing-prototype warnings for doublefault code
  x86/fpu: Include asm/fpu/regset.h
  x86: Add dummy prototype for mk_early_pgtbl_32()
  x86/pci: Mark local functions as 'static'
  x86/ftrace: Move prepare_ftrace_return prototype to header
  ...
2023-06-26 16:43:54 -07:00
Linus Torvalds
3e5822e0f9 - Implement a rename operation in resctrlfs to facilitate handling
of application containers with dynamically changing task lists
 
 - When reading the tasks file, show the tasks' pid which are only in
   the current namespace as opposed to showing the pids from the init
   namespace too
 
 - Other fixes and improvements
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Merge tag 'x86_cache_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 resource control updates from Borislav Petkov:

 - Implement a rename operation in resctrlfs to facilitate handling of
   application containers with dynamically changing task lists

 - When reading the tasks file, show the tasks' pid which are only in
   the current namespace as opposed to showing the pids from the init
   namespace too

 - Other fixes and improvements

* tag 'x86_cache_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Documentation/x86: Documentation for MON group move feature
  x86/resctrl: Implement rename op for mon groups
  x86/resctrl: Factor rdtgroup lock for multi-file ops
  x86/resctrl: Only show tasks' pid in current pid namespace
2023-06-26 15:29:21 -07:00
Linus Torvalds
aa35a4835e - Add initial support for RAS hardware found on AMD server GPUs (MI200).
Those GPUs and CPUs are connected together through the coherent fabric
   and the GPU memory controllers report errors through x86's MCA so EDAC
   needs to support them. The amd64_edac driver supports now HBM (High
   Bandwidth Memory) and thus such heterogeneous memory controller
   systems
 
 - Other small cleanups and improvements
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Merge tag 'ras_core_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull RAS updates from Borislav Petkov:

 - Add initial support for RAS hardware found on AMD server GPUs (MI200).

   Those GPUs and CPUs are connected together through the coherent
   fabric and the GPU memory controllers report errors through x86's MCA
   so EDAC needs to support them. The amd64_edac driver supports now HBM
   (High Bandwidth Memory) and thus such heterogeneous memory controller
   systems

 - Other small cleanups and improvements

* tag 'ras_core_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  EDAC/amd64: Cache and use GPU node map
  EDAC/amd64: Add support for AMD heterogeneous Family 19h Model 30h-3Fh
  EDAC/amd64: Document heterogeneous system enumeration
  x86/MCE/AMD, EDAC/mce_amd: Decode UMC_V2 ECC errors
  x86/amd_nb: Re-sort and re-indent PCI defines
  x86/amd_nb: Add MI200 PCI IDs
  ras/debugfs: Fix error checking for debugfs_create_dir()
  x86/MCE: Check a hw error's address to determine proper recovery action
2023-06-26 15:09:18 -07:00
Linus Torvalds
e5ce2f196f - amd64_edac: Add support for Zen4 client hardware
- amd64_edac: Remove the version string as it is useless and actively
   confusing when looking at backported versions of the driver
 
 - Add a driver for the Nuvoton NPCM memory controller
 
 - A debugfs error checking cleanup
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Merge tag 'edac_updates_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull EDAC updates from Borislav Petkov:

 - amd64_edac: Add support for Zen4 client hardware

 - amd64_edac: Remove the version string as it is useless and actively
   confusing when looking at backported versions of the driver

 - Add a driver for the Nuvoton NPCM memory controller

 - A debugfs error checking cleanup

* tag 'edac_updates_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/npcm: Add NPCM memory controller driver
  dt-bindings: memory-controllers: nuvoton: Add NPCM memory controller
  EDAC/thunderx: Check debugfs file creation retval properly
  EDAC/amd64: Add support for ECC on family 19h model 60h-7Fh
  EDAC/amd64: Remove module version string
2023-06-26 15:06:42 -07:00
Linus Torvalds
cd336f6562 Time, timekeeping and related device driver updates:
- Core:
 
    - A set of fixes, cleanups and enhancements to the posix timer code:
 
      - Prevent another possible live lock scenario in the exit() path,
        which affects POSIX_CPU_TIMERS_TASK_WORK enabled architectures.
 
      - Fix a loop termination issue which was reported syzcaller/KSAN in
        the posix timer ID allocation code.
 
        That triggered a deeper look into the posix-timer code which
        unearthed more small issues.
 
      - Add missing READ/WRITE_ONCE() annotations
 
      - Fix or remove completely outdated comments
 
      - Document places which are subtle and completely undocumented.
 
    - Add missing hrtimer modes to the trace event decoder
 
    - Small cleanups and enhancements all over the place
 
  - Drivers:
 
      - Rework the Hyper-V clocksource and sched clock setup code
 
      - Remove a deprecated clocksource driver
 
      - Small fixes and enhancements all over the place
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Merge tag 'timers-core-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer updates from Thomas Gleixner:
 "Time, timekeeping and related device driver updates:

  Core:

   - A set of fixes, cleanups and enhancements to the posix timer code:

       - Prevent another possible live lock scenario in the exit() path,
         which affects POSIX_CPU_TIMERS_TASK_WORK enabled architectures.

       - Fix a loop termination issue which was reported syzcaller/KSAN
         in the posix timer ID allocation code.

         That triggered a deeper look into the posix-timer code which
         unearthed more small issues.

       - Add missing READ/WRITE_ONCE() annotations

       - Fix or remove completely outdated comments

       - Document places which are subtle and completely undocumented.

   - Add missing hrtimer modes to the trace event decoder

   - Small cleanups and enhancements all over the place

  Drivers:

   - Rework the Hyper-V clocksource and sched clock setup code

   - Remove a deprecated clocksource driver

   - Small fixes and enhancements all over the place"

* tag 'timers-core-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits)
  clocksource/drivers/cadence-ttc: Fix memory leak in ttc_timer_probe
  dt-bindings: timers: Add Ralink SoCs timer
  clocksource/drivers/hyper-v: Rework clocksource and sched clock setup
  dt-bindings: timer: brcm,kona-timer: convert to YAML
  clocksource/drivers/imx-gpt: Fold <soc/imx/timer.h> into its only user
  clk: imx: Drop inclusion of unused header <soc/imx/timer.h>
  hrtimer: Add missing sparse annotations to hrtimer locking
  clocksource/drivers/imx-gpt: Use only a single name for functions
  clocksource/drivers/loongson1: Move PWM timer to clocksource framework
  dt-bindings: timer: Add Loongson-1 clocksource
  MIPS: Loongson32: Remove deprecated PWM timer clocksource
  clocksource/drivers/ingenic-timer: Use pm_sleep_ptr() macro
  tracing/timer: Add missing hrtimer modes to decode_hrtimer_mode().
  posix-timers: Add sys_ni_posix_timers() prototype
  tick/rcu: Fix bogus ratelimit condition
  alarmtimer: Remove unnecessary (void *) cast
  alarmtimer: Remove unnecessary initialization of variable 'ret'
  posix-timers: Refer properly to CONFIG_HIGH_RES_TIMERS
  posix-timers: Polish coding style in a few places
  posix-timers: Remove pointless comments
  ...
2023-06-26 14:10:45 -07:00
Linus Torvalds
9244724fbf A large update for SMP management:
- Parallel CPU bringup
 
     The reason why people are interested in parallel bringup is to shorten
     the (kexec) reboot time of cloud servers to reduce the downtime of the
     VM tenants.
 
     The current fully serialized bringup does the following per AP:
 
       1) Prepare callbacks (allocate, intialize, create threads)
       2) Kick the AP alive (e.g. INIT/SIPI on x86)
       3) Wait for the AP to report alive state
       4) Let the AP continue through the atomic bringup
       5) Let the AP run the threaded bringup to full online state
 
     There are two significant delays:
 
       #3 The time for an AP to report alive state in start_secondary() on
          x86 has been measured in the range between 350us and 3.5ms
          depending on vendor and CPU type, BIOS microcode size etc.
 
       #4 The atomic bringup does the microcode update. This has been
          measured to take up to ~8ms on the primary threads depending on
          the microcode patch size to apply.
 
     On a two socket SKL server with 56 cores (112 threads) the boot CPU
     spends on current mainline about 800ms busy waiting for the APs to come
     up and apply microcode. That's more than 80% of the actual onlining
     procedure.
 
     This can be reduced significantly by splitting the bringup mechanism
     into two parts:
 
       1) Run the prepare callbacks and kick the AP alive for each AP which
       	 needs to be brought up.
 
 	 The APs wake up, do their firmware initialization and run the low
       	 level kernel startup code including microcode loading in parallel
       	 up to the first synchronization point. (#1 and #2 above)
 
       2) Run the rest of the bringup code strictly serialized per CPU
       	 (#3 - #5 above) as it's done today.
 
 	 Parallelizing that stage of the CPU bringup might be possible in
 	 theory, but it's questionable whether required surgery would be
 	 justified for a pretty small gain.
 
     If the system is large enough the first AP is already waiting at the
     first synchronization point when the boot CPU finished the wake-up of
     the last AP. That reduces the AP bringup time on that SKL from ~800ms
     to ~80ms, i.e. by a factor ~10x.
 
     The actual gain varies wildly depending on the system, CPU, microcode
     patch size and other factors. There are some opportunities to reduce
     the overhead further, but that needs some deep surgery in the x86 CPU
     bringup code.
 
     For now this is only enabled on x86, but the core functionality
     obviously works for all SMP capable architectures.
 
   - Enhancements for SMP function call tracing so it is possible to locate
     the scheduling and the actual execution points. That allows to measure
     IPI delivery time precisely.
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Merge tag 'smp-core-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull SMP updates from Thomas Gleixner:
 "A large update for SMP management:

   - Parallel CPU bringup

     The reason why people are interested in parallel bringup is to
     shorten the (kexec) reboot time of cloud servers to reduce the
     downtime of the VM tenants.

     The current fully serialized bringup does the following per AP:

       1) Prepare callbacks (allocate, intialize, create threads)
       2) Kick the AP alive (e.g. INIT/SIPI on x86)
       3) Wait for the AP to report alive state
       4) Let the AP continue through the atomic bringup
       5) Let the AP run the threaded bringup to full online state

     There are two significant delays:

       #3 The time for an AP to report alive state in start_secondary()
          on x86 has been measured in the range between 350us and 3.5ms
          depending on vendor and CPU type, BIOS microcode size etc.

       #4 The atomic bringup does the microcode update. This has been
          measured to take up to ~8ms on the primary threads depending
          on the microcode patch size to apply.

     On a two socket SKL server with 56 cores (112 threads) the boot CPU
     spends on current mainline about 800ms busy waiting for the APs to
     come up and apply microcode. That's more than 80% of the actual
     onlining procedure.

     This can be reduced significantly by splitting the bringup
     mechanism into two parts:

       1) Run the prepare callbacks and kick the AP alive for each AP
          which needs to be brought up.

          The APs wake up, do their firmware initialization and run the
          low level kernel startup code including microcode loading in
          parallel up to the first synchronization point. (#1 and #2
          above)

       2) Run the rest of the bringup code strictly serialized per CPU
          (#3 - #5 above) as it's done today.

          Parallelizing that stage of the CPU bringup might be possible
          in theory, but it's questionable whether required surgery
          would be justified for a pretty small gain.

     If the system is large enough the first AP is already waiting at
     the first synchronization point when the boot CPU finished the
     wake-up of the last AP. That reduces the AP bringup time on that
     SKL from ~800ms to ~80ms, i.e. by a factor ~10x.

     The actual gain varies wildly depending on the system, CPU,
     microcode patch size and other factors. There are some
     opportunities to reduce the overhead further, but that needs some
     deep surgery in the x86 CPU bringup code.

     For now this is only enabled on x86, but the core functionality
     obviously works for all SMP capable architectures.

   - Enhancements for SMP function call tracing so it is possible to
     locate the scheduling and the actual execution points. That allows
     to measure IPI delivery time precisely"

* tag 'smp-core-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip: (45 commits)
  trace,smp: Add tracepoints for scheduling remotelly called functions
  trace,smp: Add tracepoints around remotelly called functions
  MAINTAINERS: Add CPU HOTPLUG entry
  x86/smpboot: Fix the parallel bringup decision
  x86/realmode: Make stack lock work in trampoline_compat()
  x86/smp: Initialize cpu_primary_thread_mask late
  cpu/hotplug: Fix off by one in cpuhp_bringup_mask()
  x86/apic: Fix use of X{,2}APIC_ENABLE in asm with older binutils
  x86/smpboot/64: Implement arch_cpuhp_init_parallel_bringup() and enable it
  x86/smpboot: Support parallel startup of secondary CPUs
  x86/smpboot: Implement a bit spinlock to protect the realmode stack
  x86/apic: Save the APIC virtual base address
  cpu/hotplug: Allow "parallel" bringup up to CPUHP_BP_KICK_AP_STATE
  x86/apic: Provide cpu_primary_thread mask
  x86/smpboot: Enable split CPU startup
  cpu/hotplug: Provide a split up CPUHP_BRINGUP mechanism
  cpu/hotplug: Reset task stack state in _cpu_up()
  cpu/hotplug: Remove unused state functions
  riscv: Switch to hotplug core state synchronization
  parisc: Switch to hotplug core state synchronization
  ...
2023-06-26 13:59:56 -07:00
Linus Torvalds
0017387938 Updates for the interrupt subsystem:
- Core:
 
    - Convert the interrupt descriptor storage to a maple tree to overcome
      the limitations of the radixtree + fixed size bitmap. This allows to
      handle real large servers with a huge number of guests without
      imposing a huge memory overhead on everyone.
 
    - Implement optional retriggering of interrupts which utilize the
      fasteoi handler to work around a GICv3 architecture issue.
 
  - Drivers:
 
    - A set of fixes and updates for the Loongson/Loongarch related drivers.
 
    - Workaound for an ASR8601 integration hickup which ends up with CPU
      numbering which can't be represented in the GIC implementation.
 
    - The usual set of boring fixes and updates all over the place.
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Merge tag 'irq-core-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq updates from Thomas Gleixner:
 "Updates for the interrupt subsystem:

  Core:

   - Convert the interrupt descriptor storage to a maple tree to
     overcome the limitations of the radixtree + fixed size bitmap.

     This allows us to handle very large servers with a huge number of
     guests without imposing a huge memory overhead on everyone

   - Implement optional retriggering of interrupts which utilize the
     fasteoi handler to work around a GICv3 architecture issue

  Drivers:

   - A set of fixes and updates for the Loongson/Loongarch related
     drivers

   - Workaound for an ASR8601 integration hickup which ends up with CPU
     numbering which can't be represented in the GIC implementation

   - The usual set of boring fixes and updates all over the place"

* tag 'irq-core-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
  Revert "irqchip/mxs: Include linux/irqchip/mxs.h"
  irqchip/jcore-aic: Fix missing allocation of IRQ descriptors
  irqchip/stm32-exti: Fix warning on initialized field overwritten
  irqchip/stm32-exti: Add STM32MP15xx IWDG2 EXTI to GIC map
  irqchip/gicv3: Add a iort_pmsi_get_dev_id() prototype
  irqchip/mxs: Include linux/irqchip/mxs.h
  irqchip/clps711x: Remove unused clps711x_intc_init() function
  irqchip/mmp: Remove non-DT codepath
  irqchip/ftintc010: Mark all function static
  irqdomain: Include internals.h for function prototypes
  irqchip/loongson-eiointc: Add DT init support
  dt-bindings: interrupt-controller: Add Loongson EIOINTC
  irqchip/loongson-eiointc: Fix irq affinity setting during resume
  irqchip/loongson-liointc: Add IRQCHIP_SKIP_SET_WAKE flag
  irqchip/loongson-liointc: Fix IRQ trigger polarity
  irqchip/loongson-pch-pic: Fix potential incorrect hwirq assignment
  irqchip/loongson-pch-pic: Fix initialization of HT vector register
  irqchip/gic-v3-its: Enable RESEND_WHEN_IN_PROGRESS for LPIs
  genirq: Allow fasteoi handler to resend interrupts on concurrent handling
  genirq: Expand doc for PENDING and REPLAY flags
  ...
2023-06-26 13:34:39 -07:00
Linus Torvalds
a0433f8cae for-6.5/block-2023-06-23
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Merge tag 'for-6.5/block-2023-06-23' of git://git.kernel.dk/linux

Pull block updates from Jens Axboe:

 - NVMe pull request via Keith:
      - Various cleanups all around (Irvin, Chaitanya, Christophe)
      - Better struct packing (Christophe JAILLET)
      - Reduce controller error logs for optional commands (Keith)
      - Support for >=64KiB block sizes (Daniel Gomez)
      - Fabrics fixes and code organization (Max, Chaitanya, Daniel
        Wagner)

 - bcache updates via Coly:
      - Fix a race at init time (Mingzhe Zou)
      - Misc fixes and cleanups (Andrea, Thomas, Zheng, Ye)

 - use page pinning in the block layer for dio (David)

 - convert old block dio code to page pinning (David, Christoph)

 - cleanups for pktcdvd (Andy)

 - cleanups for rnbd (Guoqing)

 - use the unchecked __bio_add_page() for the initial single page
   additions (Johannes)

 - fix overflows in the Amiga partition handling code (Michael)

 - improve mq-deadline zoned device support (Bart)

 - keep passthrough requests out of the IO schedulers (Christoph, Ming)

 - improve support for flush requests, making them less special to deal
   with (Christoph)

 - add bdev holder ops and shutdown methods (Christoph)

 - fix the name_to_dev_t() situation and use cases (Christoph)

 - decouple the block open flags from fmode_t (Christoph)

 - ublk updates and cleanups, including adding user copy support (Ming)

 - BFQ sanity checking (Bart)

 - convert brd from radix to xarray (Pankaj)

 - constify various structures (Thomas, Ivan)

 - more fine grained persistent reservation ioctl capability checks
   (Jingbo)

 - misc fixes and cleanups (Arnd, Azeem, Demi, Ed, Hengqi, Hou, Jan,
   Jordy, Li, Min, Yu, Zhong, Waiman)

* tag 'for-6.5/block-2023-06-23' of git://git.kernel.dk/linux: (266 commits)
  scsi/sg: don't grab scsi host module reference
  ext4: Fix warning in blkdev_put()
  block: don't return -EINVAL for not found names in devt_from_devname
  cdrom: Fix spectre-v1 gadget
  block: Improve kernel-doc headers
  blk-mq: don't insert passthrough request into sw queue
  bsg: make bsg_class a static const structure
  ublk: make ublk_chr_class a static const structure
  aoe: make aoe_class a static const structure
  block/rnbd: make all 'class' structures const
  block: fix the exclusive open mask in disk_scan_partitions
  block: add overflow checks for Amiga partition support
  block: change all __u32 annotations to __be32 in affs_hardblocks.h
  block: fix signed int overflow in Amiga partition support
  block: add capacity validation in bdev_add_partition()
  block: fine-granular CAP_SYS_ADMIN for Persistent Reservation
  block: disallow Persistent Reservation on partitions
  reiserfs: fix blkdev_put() warning from release_journal_dev()
  block: fix wrong mode for blkdev_get_by_dev() from disk_scan_partitions()
  block: document the holder argument to blkdev_get_by_path
  ...
2023-06-26 12:47:20 -07:00
Linus Torvalds
74774e243c fsverity updates for 6.5
Several updates for fs/verity/:
 
 - Do all hashing with the shash API instead of with the ahash API.  This
   simplifies the code and reduces API overhead.  It should also make
   things slightly easier for XFS's upcoming support for fsverity.  It
   does drop fsverity's support for off-CPU hash accelerators, but that
   support was incomplete and not known to be used.
 
 - Update and export fsverity_get_digest() so that it's ready for
   overlayfs's upcoming support for fsverity checking of lowerdata.
 
 - Improve the documentation for builtin signature support.
 
 - Fix a bug in the large folio support.
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Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux

Pull fsverity updates from Eric Biggers:
 "Several updates for fs/verity/:

   - Do all hashing with the shash API instead of with the ahash API.

     This simplifies the code and reduces API overhead. It should also
     make things slightly easier for XFS's upcoming support for
     fsverity. It does drop fsverity's support for off-CPU hash
     accelerators, but that support was incomplete and not known to be
     used

   - Update and export fsverity_get_digest() so that it's ready for
     overlayfs's upcoming support for fsverity checking of lowerdata

   - Improve the documentation for builtin signature support

   - Fix a bug in the large folio support"

* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux:
  fsverity: improve documentation for builtin signature support
  fsverity: rework fsverity_get_digest() again
  fsverity: simplify error handling in verify_data_block()
  fsverity: don't use bio_first_page_all() in fsverity_verify_bio()
  fsverity: constify fsverity_hash_alg
  fsverity: use shash API instead of ahash API
2023-06-26 10:56:13 -07:00
Linus Torvalds
2eedfa9e27 v6.5/vfs.rename.locking
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Merge tag 'v6.5/vfs.rename.locking' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

Pull vfs rename locking updates from Christian Brauner:
 "This contains the work from Jan to fix problems with cross-directory
  renames originally reported in [1].

  To quickly sum it up some filesystems (so far we know at least about
  ext4, udf, f2fs, ocfs2, likely also reiserfs, gfs2 and others) need to
  lock the directory when it is being renamed into another directory.

  This is because we need to update the parent pointer in the directory
  in that case and if that races with other operations on the directory,
  in particular a conversion from one directory format into another, bad
  things can happen.

  So far we've done the locking in the filesystem code but recently
  Darrick pointed out in [2] that the RENAME_EXCHANGE case was missing.
  That one is particularly nasty because RENAME_EXCHANGE can arbitrarily
  mix regular files and directories and proper lock ordering is not
  achievable in the filesystems alone.

  This patch set adds locking into vfs_rename() so that not only parent
  directories but also moved inodes, regardless of whether they are
  directories or not, are locked when calling into the filesystem.

  This means establishing a locking order for unrelated directories. New
  helpers are added for this purpose and our documentation is updated to
  cover this in detail.

  The locking is now actually easier to follow as we now always lock
  source and target. We've always locked the target independent of
  whether it was a directory or file and we've always locked source if
  it was a regular file. The exact details for why this came about can
  be found in [3] and [4]"

Link: https://lore.kernel.org/all/20230117123735.un7wbamlbdihninm@quack3 [1]
Link: https://lore.kernel.org/all/20230517045836.GA11594@frogsfrogsfrogs [2]
Link: https://lore.kernel.org/all/20230526-schrebergarten-vortag-9cd89694517e@brauner [3]
Link: https://lore.kernel.org/all/20230530-seenotrettung-allrad-44f4b00139d4@brauner [4]

* tag 'v6.5/vfs.rename.locking' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  fs: Restrict lock_two_nondirectories() to non-directory inodes
  fs: Lock moved directories
  fs: Establish locking order for unrelated directories
  Revert "f2fs: fix potential corruption when moving a directory"
  Revert "udf: Protect rename against modification of moved directory"
  ext4: Remove ext4 locking of moved directory
2023-06-26 10:01:26 -07:00
Linus Torvalds
a1257b5e3b Rust changes for v6.5
A fairly small one in terms of feature additions. Most of the changes in
 terms of lines come from the upgrade to the new version of the toolchain
 (which in turn is big due to the vendored 'alloc' crate).
 
  - Upgrade to Rust 1.68.2:
 
    This is the first such upgrade, and we will try to update it often
    from now on, in order to remain close to the latest release, until
    a minimum version (which is "in the future") can be established.
 
    The upgrade brings the stabilization of 4 features we used (and 2
    more that we used in our old 'rust' branch).
 
    Commit 3ed03f4da06e ("rust: upgrade to Rust 1.68.2") contains the
    details and rationale.
 
  - pin-init API:
 
    Several internal improvements and fixes to the pin-init API, e.g.
    allowing to use 'Self' in a struct definition with '#[pin_data]'.
 
  - 'error'  module:
 
    New 'name()' method for the 'Error' type (with 'errname()'
    integration), used to implement the 'Debug' trait for 'Error'.
 
    Add error codes from 'include/linux/errno.h' to the list of Rust
    'Error' constants.
 
    Allow specifying error type on the 'Result' type (with the default
    still being our usual 'Error' type).
 
  - 'str' module:
 
    'TryFrom' implementation for 'CStr', and new 'to_cstring()' method
    based on it.
 
  - 'sync' module:
 
    Implement 'AsRef' trait for 'Arc', allowing to use 'Arc' in code that
    is generic over smart pointer types.
 
    Add 'ptr_eq' method to 'Arc' for easier, less error prone comparison
    between two 'Arc' pointers.
 
    Reword the 'Send' safety comment for 'Arc', and avoid referencing it
    from the 'Sync' one.
 
  - 'task' module:
 
    Implement 'Send' marker for 'Task'.
 
  - 'types' module:
 
    Implement 'Send' and 'Sync' markers for 'ARef<T>' when 'T' is
    'AlwaysRefCounted', 'Send' and 'Sync'.
 
  - Other changes:
 
    Documentation improvements and '.gitattributes' change to start
    using the Rust diff driver.
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Merge tag 'rust-6.5' of https://github.com/Rust-for-Linux/linux

Pull rust updates from Miguel Ojeda:
 "A fairly small one in terms of feature additions. Most of the changes
  in terms of lines come from the upgrade to the new version of the
  toolchain (which in turn is big due to the vendored 'alloc' crate).

  Upgrade to Rust 1.68.2:

   - This is the first such upgrade, and we will try to update it often
     from now on, in order to remain close to the latest release, until
     a minimum version (which is "in the future") can be established.

     The upgrade brings the stabilization of 4 features we used (and 2
     more that we used in our old 'rust' branch).

     Commit 3ed03f4da06e ("rust: upgrade to Rust 1.68.2") contains the
     details and rationale.

  pin-init API:

   - Several internal improvements and fixes to the pin-init API, e.g.
     allowing to use 'Self' in a struct definition with '#[pin_data]'.

  'error' module:

   - New 'name()' method for the 'Error' type (with 'errname()'
     integration), used to implement the 'Debug' trait for 'Error'.

   - Add error codes from 'include/linux/errno.h' to the list of Rust
     'Error' constants.

   - Allow specifying error type on the 'Result' type (with the default
     still being our usual 'Error' type).

  'str' module:

   - 'TryFrom' implementation for 'CStr', and new 'to_cstring()' method
     based on it.

  'sync' module:

   - Implement 'AsRef' trait for 'Arc', allowing to use 'Arc' in code
     that is generic over smart pointer types.

   - Add 'ptr_eq' method to 'Arc' for easier, less error prone
     comparison between two 'Arc' pointers.

   - Reword the 'Send' safety comment for 'Arc', and avoid referencing
     it from the 'Sync' one.

  'task' module:

   - Implement 'Send' marker for 'Task'.

  'types' module:

   - Implement 'Send' and 'Sync' markers for 'ARef<T>' when 'T' is
     'AlwaysRefCounted', 'Send' and 'Sync'.

  Other changes:

   - Documentation improvements and '.gitattributes' change to start
     using the Rust diff driver"

* tag 'rust-6.5' of https://github.com/Rust-for-Linux/linux:
  rust: error: `impl Debug` for `Error` with `errname()` integration
  rust: task: add `Send` marker to `Task`
  rust: specify when `ARef` is thread safe
  rust: sync: reword the `Arc` safety comment for `Sync`
  rust: sync: reword the `Arc` safety comment for `Send`
  rust: sync: implement `AsRef<T>` for `Arc<T>`
  rust: sync: add `Arc::ptr_eq`
  rust: error: add missing error codes
  rust: str: add conversion from `CStr` to `CString`
  rust: error: allow specifying error type on `Result`
  rust: init: update macro expansion example in docs
  rust: macros: replace Self with the concrete type in #[pin_data]
  rust: macros: refactor generics parsing of `#[pin_data]` into its own function
  rust: macros: fix usage of `#[allow]` in `quote!`
  docs: rust: point directly to the standalone installers
  .gitattributes: set diff driver for Rust source code files
  rust: upgrade to Rust 1.68.2
  rust: arc: fix intra-doc link in `Arc<T>::init`
  rust: alloc: clarify what is the upstream version
2023-06-26 09:35:50 -07:00
Alex Leibovich
705fd8f189 dt-bindings: armada-thermal: Add armada-ap807-thermal compatible
Add marvell,armada-ap807-thermal compatible for the AP807 die.

Signed-off-by: Alex Leibovich <alexl@marvell.com>
Reviewed-by: Stefan Chulski <stefanc@marvell.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/E1qA7yP-00Ea4o-FS@rmk-PC.armlinux.org.uk
2023-06-26 12:03:14 +02:00
Stephan Gerhold
ba3bcfebea dt-bindings: thermal: qcom-tsens: Add MSM8909 compatible
MSM8909 uses the TSENS v0.1 block similar to other SoCs like MDM9607.
Document the "qcom,msm8909-tsens" compatible in the existing schema.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230508-msm8909-tsens-v5-5-5eb632235ba7@kernkonzept.com
2023-06-26 12:03:13 +02:00
Stephan Gerhold
a06027820d dt-bindings: thermal: qcom-tsens: Drop redundant compatibles
Since the SoC compatibles must be followed by the IP version compatible
(e.g. compatible = "qcom,msm8916-tsens", "qcom,tsens-v0_1";) it is
redundant to list all the SoC compatibles again in the if statement.
It will already match the IP-version compatible.

The list has already become inconsistent since for example
"qcom,msm8939-tsens" is covered by the if statement but is not listed
there explicitly like the other SoCs.

Simplify this by dropping the redundant SoC compatibles. ipq8064 and
msm8960 are still needed because they do not have an IP-version
compatible.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230508-msm8909-tsens-v5-4-5eb632235ba7@kernkonzept.com
2023-06-26 12:03:13 +02:00
Praveenkumar I
074ccf8d6c dt-bindings: thermal: tsens: Add ipq9574 compatible
Qualcomm IPQ9574 has tsens v2.3.1 block, which is similar to IPQ8074 tsens.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Praveenkumar I <quic_ipkumar@quicinc.com>
Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/ec9799504fe5a141e107bb78955d8d427f00553f.1686125196.git.quic_varada@quicinc.com
2023-06-26 12:03:13 +02:00
Stefan Wahren
e74491dee6 dt-bindings: thermal: convert bcm2835-thermal bindings to YAML
Convert the DT binding document for bcm2835-thermal from .txt to YAML.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230604121223.9625-10-stefan.wahren@i2se.com
2023-06-26 12:03:13 +02:00
Matti Lehtimäki
065ab3abf9 dt-bindings: thermal: tsens: Add compatible for MSM8226
Qualcomm MSM8226 has tsens v0.1 block.

Signed-off-by: Matti Lehtimäki <matti.lehtimaki@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Luca Weiss <luca@z3ntu.xyz>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230507201225.89694-3-matti.lehtimaki@gmail.com
2023-06-26 12:03:13 +02:00
Konrad Dybcio
0849027b09 dt-bindings: thermal: tsens: Add compatible for SM6375
The Qualcomm SM6375 platform has two instances of the tsens v2.8.0 block,
add a compatible for these instances.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230516-topic-lost_tsens_bindings-v1-2-99715746ddb1@linaro.org
2023-06-26 12:03:13 +02:00
Konrad Dybcio
05570560d2 dt-bindings: thermal: tsens: Add QCM2290
Add the TSENS v2.x controller found on QCM2290.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230516-topic-lost_tsens_bindings-v1-1-99715746ddb1@linaro.org
2023-06-26 12:03:13 +02:00
Linus Torvalds
e3b2e2c14b Nothing fancy. Two driver and one DT binding fix.
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Merge tag 'i2c-for-6.4-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "Nothing fancy. Two driver and one DT binding fix"

* tag 'i2c-for-6.4-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: imx-lpi2c: fix type char overflow issue when calculating the clock cycle
  i2c: qup: Add missing unwind goto in qup_i2c_probe()
  dt-bindings: i2c: opencores: Add missing type for "regstep"
2023-06-25 15:36:01 -07:00
Linus Torvalds
0f56e65748 ARM: SoC fixes for 6.4, part 3
The final bug fixes for Qualcomm and Rockchips came in, all of them
 for devicetree files:
 
  - Devices on Qualcomm SC7180/SC7280 that are cache coherent are now
    marked so correctly to fix a regression after a change in kernel behavior.
 
  - Rockchips has a few minor changes for correctness of regulator and cache
    properties, as well as fixes for incorrect behavior of the RK3568 PCI
    controller and reset pins on two boards.
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Merge tag 'arm-fixes-6.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "The final bug fixes for Qualcomm and Rockchips came in, all of them
  for devicetree files:

   - Devices on Qualcomm SC7180/SC7280 that are cache coherent are now
     marked so correctly to fix a regression after a change in kernel
     behavior

   - Rockchips has a few minor changes for correctness of regulator and
     cache properties, as well as fixes for incorrect behavior of the
     RK3568 PCI controller and reset pins on two boards"

* tag 'arm-fixes-6.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  arm64: dts: qcom: sc7280: Mark SCM as dma-coherent for chrome devices
  arm64: dts: qcom: sc7180: Mark SCM as dma-coherent for trogdor
  arm64: dts: qcom: sc7180: Mark SCM as dma-coherent for IDP
  dt-bindings: firmware: qcom,scm: Document that SCM can be dma-coherent
  arm64: dts: rockchip: Fix rk356x PCIe register and range mappings
  arm64: dts: rockchip: fix button reset pin for nanopi r5c
  arm64: dts: rockchip: fix nEXTRST on SOQuartz
  arm64: dts: rockchip: add missing cache properties
  arm64: dts: rockchip: fix USB regulator on ROCK64
2023-06-23 16:21:59 -07:00
Arnd Bergmann
ed8ff046ed One last Qualcomm ARM64 DeviceTree fix for v6.4
Changes related to cache management for DMA memory caused WiFi to stop
 work on SC7180 and SC7280 based products, using TF-A. These changes
 marks the relevant device dma-coherent to correct the behavior.
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Merge tag 'qcom-arm64-fixes-for-6.4-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into arm/fixes

One last Qualcomm ARM64 DeviceTree fix for v6.4

Changes related to cache management for DMA memory caused WiFi to stop
work on SC7180 and SC7280 based products, using TF-A. These changes
marks the relevant device dma-coherent to correct the behavior.

* tag 'qcom-arm64-fixes-for-6.4-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
  arm64: dts: qcom: sc7280: Mark SCM as dma-coherent for chrome devices
  arm64: dts: qcom: sc7180: Mark SCM as dma-coherent for trogdor
  arm64: dts: qcom: sc7180: Mark SCM as dma-coherent for IDP
  dt-bindings: firmware: qcom,scm: Document that SCM can be dma-coherent

Link: https://lore.kernel.org/r/20230622203248.106422-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2023-06-23 22:13:27 +02:00
Catalin Marinas
abc17128c8 Merge branch 'for-next/feat_s1pie' into for-next/core
* for-next/feat_s1pie:
  : Support for the Armv8.9 Permission Indirection Extensions (stage 1 only)
  KVM: selftests: get-reg-list: add Permission Indirection registers
  KVM: selftests: get-reg-list: support ID register features
  arm64: Document boot requirements for PIE
  arm64: transfer permission indirection settings to EL2
  arm64: enable Permission Indirection Extension (PIE)
  arm64: add encodings of PIRx_ELx registers
  arm64: disable EL2 traps for PIE
  arm64: reorganise PAGE_/PROT_ macros
  arm64: add PTE_WRITE to PROT_SECT_NORMAL
  arm64: add PTE_UXN/PTE_WRITE to SWAPPER_*_FLAGS
  KVM: arm64: expose ID_AA64MMFR3_EL1 to guests
  KVM: arm64: Save/restore PIE registers
  KVM: arm64: Save/restore TCR2_EL1
  arm64: cpufeature: add Permission Indirection Extension cpucap
  arm64: cpufeature: add TCR2 cpucap
  arm64: cpufeature: add system register ID_AA64MMFR3
  arm64/sysreg: add PIR*_ELx registers
  arm64/sysreg: update HCRX_EL2 register
  arm64/sysreg: add system registers TCR2_ELx
  arm64/sysreg: Add ID register ID_AA64MMFR3
2023-06-23 18:34:16 +01:00
Catalin Marinas
f42039d10b Merge branches 'for-next/kpti', 'for-next/missing-proto-warn', 'for-next/iss2-decode', 'for-next/kselftest', 'for-next/misc', 'for-next/feat_mops', 'for-next/module-alloc', 'for-next/sysreg', 'for-next/cpucap', 'for-next/acpi', 'for-next/kdump', 'for-next/acpi-doc', 'for-next/doc' and 'for-next/tpidr2-fix', remote-tracking branch 'arm64/for-next/perf' into for-next/core
* arm64/for-next/perf:
  docs: perf: Fix warning from 'make htmldocs' in hisi-pmu.rst
  docs: perf: Add new description for HiSilicon UC PMU
  drivers/perf: hisi: Add support for HiSilicon UC PMU driver
  drivers/perf: hisi: Add support for HiSilicon H60PA and PAv3 PMU driver
  perf: arm_cspmu: Add missing MODULE_DEVICE_TABLE
  perf/arm-cmn: Add sysfs identifier
  perf/arm-cmn: Revamp model detection
  perf/arm_dmc620: Add cpumask
  dt-bindings: perf: fsl-imx-ddr: Add i.MX93 compatible
  drivers/perf: imx_ddr: Add support for NXP i.MX9 SoC DDRC PMU driver
  perf/arm_cspmu: Decouple APMT dependency
  perf/arm_cspmu: Clean up ACPI dependency
  ACPI/APMT: Don't register invalid resource
  perf/arm_cspmu: Fix event attribute type
  perf: arm_cspmu: Set irq affinitiy only if overflow interrupt is used
  drivers/perf: hisi: Don't migrate perf to the CPU going to teardown
  drivers/perf: apple_m1: Force 63bit counters for M2 CPUs
  perf/arm-cmn: Fix DTC reset
  perf: qcom_l2_pmu: Make l2_cache_pmu_probe_cluster() more robust
  perf/arm-cci: Slightly optimize cci_pmu_sync_counters()

* for-next/kpti:
  : Simplify KPTI trampoline exit code
  arm64: entry: Simplify tramp_alias macro and tramp_exit routine
  arm64: entry: Preserve/restore X29 even for compat tasks

* for-next/missing-proto-warn:
  : Address -Wmissing-prototype warnings
  arm64: add alt_cb_patch_nops prototype
  arm64: move early_brk64 prototype to header
  arm64: signal: include asm/exception.h
  arm64: kaslr: add kaslr_early_init() declaration
  arm64: flush: include linux/libnvdimm.h
  arm64: module-plts: inline linux/moduleloader.h
  arm64: hide unused is_valid_bugaddr()
  arm64: efi: add efi_handle_corrupted_x18 prototype
  arm64: cpuidle: fix #ifdef for acpi functions
  arm64: kvm: add prototypes for functions called in asm
  arm64: spectre: provide prototypes for internal functions
  arm64: move cpu_suspend_set_dbg_restorer() prototype to header
  arm64: avoid prototype warnings for syscalls
  arm64: add scs_patch_vmlinux prototype
  arm64: xor-neon: mark xor_arm64_neon_*() static

* for-next/iss2-decode:
  : Add decode of ISS2 to data abort reports
  arm64/esr: Add decode of ISS2 to data abort reporting
  arm64/esr: Use GENMASK() for the ISS mask

* for-next/kselftest:
  : Various arm64 kselftest improvements
  kselftest/arm64: Log signal code and address for unexpected signals
  kselftest/arm64: Add a smoke test for ptracing hardware break/watch points

* for-next/misc:
  : Miscellaneous patches
  arm64: alternatives: make clean_dcache_range_nopatch() noinstr-safe
  arm64: hibernate: remove WARN_ON in save_processor_state
  arm64/fpsimd: Exit streaming mode when flushing tasks
  arm64: mm: fix VA-range sanity check
  arm64/mm: remove now-superfluous ISBs from TTBR writes
  arm64: consolidate rox page protection logic
  arm64: set __exception_irq_entry with __irq_entry as a default
  arm64: syscall: unmask DAIF for tracing status
  arm64: lockdep: enable checks for held locks when returning to userspace
  arm64/cpucaps: increase string width to properly format cpucaps.h
  arm64/cpufeature: Use helper for ECV CNTPOFF cpufeature

* for-next/feat_mops:
  : Support for ARMv8.8 memcpy instructions in userspace
  kselftest/arm64: add MOPS to hwcap test
  arm64: mops: allow disabling MOPS from the kernel command line
  arm64: mops: detect and enable FEAT_MOPS
  arm64: mops: handle single stepping after MOPS exception
  arm64: mops: handle MOPS exceptions
  KVM: arm64: hide MOPS from guests
  arm64: mops: don't disable host MOPS instructions from EL2
  arm64: mops: document boot requirements for MOPS
  KVM: arm64: switch HCRX_EL2 between host and guest
  arm64: cpufeature: detect FEAT_HCX
  KVM: arm64: initialize HCRX_EL2

* for-next/module-alloc:
  : Make the arm64 module allocation code more robust (clean-up, VA range expansion)
  arm64: module: rework module VA range selection
  arm64: module: mandate MODULE_PLTS
  arm64: module: move module randomization to module.c
  arm64: kaslr: split kaslr/module initialization
  arm64: kasan: remove !KASAN_VMALLOC remnants
  arm64: module: remove old !KASAN_VMALLOC logic

* for-next/sysreg: (21 commits)
  : More sysreg conversions to automatic generation
  arm64/sysreg: Convert TRBIDR_EL1 register to automatic generation
  arm64/sysreg: Convert TRBTRG_EL1 register to automatic generation
  arm64/sysreg: Convert TRBMAR_EL1 register to automatic generation
  arm64/sysreg: Convert TRBSR_EL1 register to automatic generation
  arm64/sysreg: Convert TRBBASER_EL1 register to automatic generation
  arm64/sysreg: Convert TRBPTR_EL1 register to automatic generation
  arm64/sysreg: Convert TRBLIMITR_EL1 register to automatic generation
  arm64/sysreg: Rename TRBIDR_EL1 fields per auto-gen tools format
  arm64/sysreg: Rename TRBTRG_EL1 fields per auto-gen tools format
  arm64/sysreg: Rename TRBMAR_EL1 fields per auto-gen tools format
  arm64/sysreg: Rename TRBSR_EL1 fields per auto-gen tools format
  arm64/sysreg: Rename TRBBASER_EL1 fields per auto-gen tools format
  arm64/sysreg: Rename TRBPTR_EL1 fields per auto-gen tools format
  arm64/sysreg: Rename TRBLIMITR_EL1 fields per auto-gen tools format
  arm64/sysreg: Convert OSECCR_EL1 to automatic generation
  arm64/sysreg: Convert OSDTRTX_EL1 to automatic generation
  arm64/sysreg: Convert OSDTRRX_EL1 to automatic generation
  arm64/sysreg: Convert OSLAR_EL1 to automatic generation
  arm64/sysreg: Standardise naming of bitfield constants in OSL[AS]R_EL1
  arm64/sysreg: Convert MDSCR_EL1 to automatic register generation
  ...

* for-next/cpucap:
  : arm64 cpucap clean-up
  arm64: cpufeature: fold cpus_set_cap() into update_cpu_capabilities()
  arm64: cpufeature: use cpucap naming
  arm64: alternatives: use cpucap naming
  arm64: standardise cpucap bitmap names

* for-next/acpi:
  : Various arm64-related ACPI patches
  ACPI: bus: Consolidate all arm specific initialisation into acpi_arm_init()

* for-next/kdump:
  : Simplify the crashkernel reservation behaviour of crashkernel=X,high on arm64
  arm64: add kdump.rst into index.rst
  Documentation: add kdump.rst to present crashkernel reservation on arm64
  arm64: kdump: simplify the reservation behaviour of crashkernel=,high

* for-next/acpi-doc:
  : Update ACPI documentation for Arm systems
  Documentation/arm64: Update ACPI tables from BBR
  Documentation/arm64: Update references in arm-acpi
  Documentation/arm64: Update ARM and arch reference

* for-next/doc:
  : arm64 documentation updates
  Documentation/arm64: Add ptdump documentation

* for-next/tpidr2-fix:
  : Fix the TPIDR2_EL0 register restoring on sigreturn
  kselftest/arm64: Add a test case for TPIDR2 restore
  arm64/signal: Restore TPIDR2 register rather than memory state
2023-06-23 18:32:20 +01:00
Rob Herring
bd5c7104d4 dt-bindings: i2c: opencores: Add missing type for "regstep"
"regstep" may be deprecated, but it still needs a type.

Fixes: 8ad69f490516 ("dt-bindings: i2c: convert ocores binding to yaml")
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Peter Korsgaard <peter@korsgaard.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2023-06-23 12:58:23 +02:00
Sergio Paracuellos
6d0d4df8e7 dt-bindings: timers: Add Ralink SoCs timer
Add YAML documentation for the timer which is present on Ralink SoCs.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230620100231.1412582-1-sergio.paracuellos@gmail.com
2023-06-23 09:33:43 +02:00
Stanislav Jakubek
038d454ad9 dt-bindings: timer: brcm,kona-timer: convert to YAML
Convert Broadcom Kona family timer bindings to DT schema.

Changes during conversion:
  - drop deprecated compatible (it's been deprecated for ~10 years)

Signed-off-by: Stanislav Jakubek <stano.jakubek@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230618144635.GA22166@standask-GA-A55M-S2HP
2023-06-23 09:33:43 +02:00
Douglas Anderson
c0877829ad dt-bindings: firmware: qcom,scm: Document that SCM can be dma-coherent
Trogdor devices use firmware backed by TF-A instead of Qualcomm's
normal TZ. On TF-A we end up mapping memory as cacheable. Specifically,
you can see in Trogdor's TF-A code [1] in qti_sip_mem_assign() that we
call qti_mmap_add_dynamic_region() with MT_RO_DATA. This translates
down to MT_MEMORY instead of MT_NON_CACHEABLE or MT_DEVICE.

Let's allow devices like trogdor to be described properly by allowing
"dma-coherent" in the SCM node.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230616081440.v2.1.Ie79b5f0ed45739695c9970df121e11d724909157@changeid
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2023-06-22 12:20:12 -07:00
Costa Shulyupin
a1e72bb00a docs: consolidate storage interfaces
to make the page more organized as requested

Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20230618062937.481280-1-costa.shul@redhat.com
2023-06-21 09:18:06 -06:00
Johannes Berg
2bb19e740e Documentation: update git configuration for Link: tag
The latest version of git (2.41.0) changed the spelling
of Message-Id to Message-ID. Adjust the perl script here
to accept both spellings.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Tested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20230619115533.981f6abaca01.I1960c39b1d61e8514afcef4806a450a209133187@changeid
2023-06-21 09:15:15 -06:00
Chaitanya S Prakash
a0238ada56 Documentation/arm64: Add ptdump documentation
ptdump is a debugfs interface used to dump the kernel page tables. It
provides a comprehensive overview about the kernel's virtual memory
layout, page table entries and associated page attributes. A document
detailing how to enable ptdump in the kernel and analyse its output has
been added.

Changes in V2:

- Corrected command to cat /sys/kernel/debug/kernel_page_tables

Changes in V1:

https://lore.kernel.org/all/20230613064845.1882177-1-chaitanyas.prakash@arm.com/

Cc: Will Deacon <will@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
CC: linux-arm-kernel@lists.infradead.org
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Chaitanya S Prakash <chaitanyas.prakash@arm.com>
Link: https://lore.kernel.org/r/20230619083802.76092-1-chaitanyas.prakash@arm.com
[catalin.marinas@arm.com: various minor fixups; sorted index.rst in alphabetical order]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2023-06-21 14:30:42 +01:00
Eric Biggers
672d6ef4c7 fsverity: improve documentation for builtin signature support
fsverity builtin signatures (CONFIG_FS_VERITY_BUILTIN_SIGNATURES) aren't
the only way to do signatures with fsverity, and they have some major
limitations.  Yet, more users have tried to use them, e.g. recently by
https://github.com/ostreedev/ostree/pull/2640.  In most cases this seems
to be because users aren't sufficiently familiar with the limitations of
this feature and what the alternatives are.

Therefore, make some updates to the documentation to try to clarify the
properties of this feature and nudge users in the right direction.

Note that the Integrity Policy Enforcement (IPE) LSM, which is not yet
upstream, is planned to use the builtin signatures.  (This differs from
IMA, which uses its own signature mechanism.)  For that reason, my
earlier patch "fsverity: mark builtin signatures as deprecated"
(https://lore.kernel.org/r/20221208033548.122704-1-ebiggers@kernel.org),
which marked builtin signatures as "deprecated", was controversial.

This patch therefore stops short of marking the feature as deprecated.
I've also revised the language to focus on better explaining the feature
and what its alternatives are.

Link: https://lore.kernel.org/r/20230620041937.5809-1-ebiggers@kernel.org
Reviewed-by: Colin Walters <walters@verbum.org>
Reviewed-by: Luca Boccassi <bluca@debian.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
2023-06-20 22:47:55 -07:00
Linus Torvalds
2e30b97343 Tracing fixes for 6.4:
- Fix MAINTAINERS file to point to proper mailing list for rtla and rv
     The mailing list pointed to linux-trace-devel instead of
     linux-trace-kernel. The former is for the tracing libraries
     and the latter is for anything in the Linux kernel tree.
     The wrong mailing list was used because linux-trace-kernel did not
     exist when rtla and rv were created.
 
  - User events:
    . Fix matching of dynamic events to their user events
      When user writes to dynamic_events file, a lookup of the
      registered dynamic events are made, but there were some cases
      that a match could be incorrectly made.
 
    . Add auto cleanup of user events
      Have the user events automatically get removed when the last
      reference (file descriptor) is closed. This was asked for to
      prevent leaks of user events hanging around needing admins
      to clean them up.
 
    . Add persistent logic (but not let user space use it yet)
      In some cases, having a persistent user event (one that does not
      get cleaned up automatically) is useful. But there's still
      debates about how to expose this to user space. The infrastructure
      is added, but the API is not.
 
    . Update the selftests
      Update the user event selftests to reflect the above changes.
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Merge tag 'trace-v6.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing fixes from Steven Rostedt:

 - Fix MAINTAINERS file to point to proper mailing list for rtla and rv

   The mailing list pointed to linux-trace-devel instead of
   linux-trace-kernel. The former is for the tracing libraries and the
   latter is for anything in the Linux kernel tree. The wrong mailing
   list was used because linux-trace-kernel did not exist when rtla and
   rv were created.

 - User events:

    - Fix matching of dynamic events to their user events

      When user writes to dynamic_events file, a lookup of the
      registered dynamic events is made, but there were some cases that
      a match could be incorrectly made.

    - Add auto cleanup of user events

      Have the user events automatically get removed when the last
      reference (file descriptor) is closed. This was asked for to
      prevent leaks of user events hanging around needing admins to
      clean them up.

    - Add persistent logic (but not let user space use it yet)

      In some cases, having a persistent user event (one that does not
      get cleaned up automatically) is useful. But there's still debates
      about how to expose this to user space. The infrastructure is
      added, but the API is not.

    - Update the selftests

      Update the user event selftests to reflect the above changes"

* tag 'trace-v6.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing/user_events: Document auto-cleanup and remove dyn_event refs
  selftests/user_events: Adapt dyn_test to non-persist events
  selftests/user_events: Ensure auto cleanup works as expected
  tracing/user_events: Add auto cleanup and future persist flag
  tracing/user_events: Track refcount consistently via put/get
  tracing/user_events: Store register flags on events
  tracing/user_events: Remove user_ns walk for groups
  selftests/user_events: Add perf self-test for empty arguments events
  selftests/user_events: Clear the events after perf self-test
  selftests/user_events: Add ftrace self-test for empty arguments events
  tracing/user_events: Fix the incorrect trace record for empty arguments events
  tracing: Modify print_fields() for fields output order
  tracing/user_events: Handle matching arguments that is null from dyn_events
  tracing/user_events: Prevent same name but different args event
  tracing/rv/rtla: Update MAINTAINERS file to point to proper mailing list
2023-06-20 15:01:08 -07:00
Keguang Zhang
b25efff2a6 dt-bindings: timer: Add Loongson-1 clocksource
Add devicetree binding document for Loongson-1 clocksource.

Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230512103724.587760-3-keguang.zhang@gmail.com
2023-06-19 17:06:55 +02:00
Randy Dunlap
6f7f812f54 Documentation: virt: Clean up paravirt_ops doc
Clarify language. Clean up grammar. Hyphenate some words.

Change "low-ops" to "low-level" since "low-ops" isn't defined or even
mentioned anywhere else in the kernel source tree.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20230610054310.6242-1-rdunlap@infradead.org
2023-06-19 12:09:54 +02:00
Will Deacon
dea0f4146f docs: perf: Fix warning from 'make htmldocs' in hisi-pmu.rst
Building the 'htmldocs' target results in the following warning when
processing 'hisi-pmu.rst':

 | Documentation/admin-guide/perf/hisi-pmu.rst:107: ERROR: Unexpected indentation.

Fix the warning by converting all of the register bitfield lists into
proper bulleted lists and adjusting the indentation of the wrapping line
accordingly. At the same time, use an enumerated list to describe the
new PMUv2 functions.

Fixes: ea8d1c062a0e ("docs: perf: Add new description for HiSilicon UC PMU")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Will Deacon <will@kernel.org>
2023-06-19 11:02:18 +01:00
Marc Zyngier
e0b78e9fa3 Merge branch irq/loongarch-fixes-6.5 into irq/irqchip-next
* irq/loongarch-fixes-6.5:
  : .
  : Yet another series of random fixes for the Loongson/Loongarch
  : string of interrupt controller, covering
  :
  : - affinity setting,
  : - trigger polarity,
  : - wake-up,
  : - DT support
  : .
  irqchip/loongson-eiointc: Add DT init support
  dt-bindings: interrupt-controller: Add Loongson EIOINTC
  irqchip/loongson-eiointc: Fix irq affinity setting during resume
  irqchip/loongson-liointc: Add IRQCHIP_SKIP_SET_WAKE flag
  irqchip/loongson-liointc: Fix IRQ trigger polarity
  irqchip/loongson-pch-pic: Fix potential incorrect hwirq assignment
  irqchip/loongson-pch-pic: Fix initialization of HT vector register

Signed-off-by: Marc Zyngier <maz@kernel.org>
2023-06-17 07:17:53 +01:00
Binbin Zhou
2c23c07a35 dt-bindings: interrupt-controller: Add Loongson EIOINTC
Add Loongson Extended I/O Interrupt controller binding with DT schema
format using json-schema.

Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/4369959615eda101e612c450b8974d76ce7e8821.1683279769.git.zhoubinbin@loongson.cn
2023-06-17 07:16:09 +01:00
Vineeth Pillai
e20f204c88 sched/deadline: Update GRUB description in the documentation
Update the details of GRUB to reflect the updated logic.

Signed-off-by: Vineeth Pillai (Google) <vineeth@bitbyteword.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Acked-by: Juri Lelli <juri.lelli@redhat.com>
Link: https://lore.kernel.org/r/20230530135526.2385378-2-vineeth@bitbyteword.org
2023-06-16 22:08:12 +02:00
Linus Torvalds
f4fd69a325 RISC-V Fix for 6.4-rc7
* A documentation patch describing how we use patchwork.
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Merge tag 'riscv-for-linus-6.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fix from Palmer Dabbelt:

 - A documentation patch describing how we use patchwork

* tag 'riscv-for-linus-6.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  Documentation: RISC-V: patch-acceptance: mention patchwork's role
2023-06-16 11:27:34 -07:00