1186115 Commits

Author SHA1 Message Date
Feng Mingxi
8b5bf64c89 clocksource/drivers/cadence-ttc: Fix memory leak in ttc_timer_probe
Smatch reports:
drivers/clocksource/timer-cadence-ttc.c:529 ttc_timer_probe()
warn: 'timer_baseaddr' from of_iomap() not released on lines: 498,508,516.

timer_baseaddr may have the problem of not being released after use,
I replaced it with the devm_of_iomap() function and added the clk_put()
function to cleanup the "clk_ce" and "clk_cs".

Fixes: e932900a3279 ("arm: zynq: Use standard timer binding")
Fixes: 70504f311d4b ("clocksource/drivers/cadence_ttc: Convert init function to return error")
Signed-off-by: Feng Mingxi <m202271825@hust.edu.cn>
Reviewed-by: Dongliang Mu <dzm91@hust.edu.cn>
Acked-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230425065611.702917-1-m202271825@hust.edu.cn
2023-06-23 09:33:44 +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
Michael Kelley
e5313f1c54 clocksource/drivers/hyper-v: Rework clocksource and sched clock setup
Current code assigns either the Hyper-V TSC page or MSR-based ref counter
as the sched clock. This may be sub-optimal in two cases. First, if there
is hardware support to ensure consistent TSC frequency across live
migrations and Hyper-V is using that support, the raw TSC is a faster
source of time than the Hyper-V TSC page.  Second, the MSR-based ref
counter is relatively slow because reads require a trap to the hypervisor.
As such, it should never be used as the sched clock. The native sched
clock based on the raw TSC or jiffies is much better.

Rework the sched clock setup so it is set to the TSC page only if
Hyper-V indicates that the TSC may have inconsistent frequency across
live migrations. Also, remove the code that sets the sched clock to
the MSR-based ref counter. In the cases where it is not set, the sched
clock will then be the native sched clock.

As part of the rework, always enable both the TSC page clocksource and
the MSR-based ref counter clocksource. Set the ratings so the TSC page
clocksource is preferred. While the MSR-based ref counter clocksource
is unlikely to ever be the default, having it available for manual
selection is convenient for development purposes.

Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/1687201360-16003-1-git-send-email-mikelley@microsoft.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
Uwe Kleine-König
281bf6b94a clocksource/drivers/imx-gpt: Fold <soc/imx/timer.h> into its only user
Only the imx-gpt timer driver makes use of enum imx_gpt_type that is
otherwise unused. Move its definition into the timer-imx-gpt driver.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230328100531.879485-3-u.kleine-koenig@pengutronix.de
2023-06-23 09:33:43 +02:00
Uwe Kleine-König
011da162da clk: imx: Drop inclusion of unused header <soc/imx/timer.h>
The clk drivers use none of the symbols defined in <soc/imx/timer.h>.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230328100531.879485-2-u.kleine-koenig@pengutronix.de
2023-06-23 09:33:43 +02:00
Uwe Kleine-König
95aded1b1c clocksource/drivers/imx-gpt: Use only a single name for functions
When looking at the data structs defining the different behaviours of
the GPT blocks in different SoCs it's not helpful that the same
functions are used with different names.

So drop the cpp defines and use the original names.

This commit was generated using:

	perl -i -e 'my %m; while (<>) { if (/^#define (imx[a-zA-Z0-6_]*)\s(imx[a-zA-Z0-6_]*)/) {$m{$1} = $2; } else { foreach my $f (keys %m) {s/$f/$m{$f}/; } print; } }' drivers/clocksource/timer-imx-gpt.c

This patch has no effect on the generated code.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230328091514.874724-1-u.kleine-koenig@pengutronix.de
2023-06-19 17:31:56 +02:00
Keguang Zhang
e738521a11 clocksource/drivers/loongson1: Move PWM timer to clocksource framework
This patch moves most part of arch/mips/loongson32/common/time.c
into drivers/clocksource.

Adapt the driver to clocksource framework with devicetree support
and updates Kconfig/Makefile options.

Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230512103724.587760-4-keguang.zhang@gmail.com
2023-06-19 17:07:03 +02:00
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
Keguang Zhang
9e130e2be4 MIPS: Loongson32: Remove deprecated PWM timer clocksource
The Loongson1 PWM timer will be moved to clocksource framework.
Then, the old driver is no longer needed.
Remove the deprecated code and update the Kconfig.

Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230512103724.587760-2-keguang.zhang@gmail.com
2023-06-19 17:06:55 +02:00
Paul Cercueil
ea95051063 clocksource/drivers/ingenic-timer: Use pm_sleep_ptr() macro
The use of the pm_sleep_ptr() macro allows the compiler to always see
the dev_pm_ops structure and related functions, while still allowing the
unused code to be removed, without the need for the __maybe_unused
markings.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230618153937.96649-1-paul@crapouillou.net
2023-06-19 16:17:42 +02:00
Sebastian Andrzej Siewior
2951580ba6 tracing/timer: Add missing hrtimer modes to decode_hrtimer_mode().
The trace output for the HRTIMER_MODE_.*_HARD modes is seen as a number
since these modes are not decoded. The author was not aware of the fancy
decoding function which makes the life easier.

Extend decode_hrtimer_mode() with the additional HRTIMER_MODE_.*_HARD
modes.

Fixes: ae6683d815895 ("hrtimer: Introduce HARD expiry mode")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com>
Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Link: https://lore.kernel.org/r/20230418143854.8vHWQKLM@linutronix.de
2023-06-19 09:09:14 +02:00
Arnd Bergmann
892f439ea1 posix-timers: Add sys_ni_posix_timers() prototype
The sys_ni_posix_timers() definition causes a warning when the declaration
is missing, so this needs to be added along with the normal syscalls,
outside of the #ifdef.

kernel/time/posix-stubs.c:26:17: error: no previous prototype for 'sys_ni_posix_timers' [-Werror=missing-prototypes]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230607142925.3126422-1-arnd@kernel.org
2023-06-18 22:41:53 +02:00
Wen Yang
a7e282c777 tick/rcu: Fix bogus ratelimit condition
The ratelimit logic in report_idle_softirq() is broken because the
exit condition is always true:

	static int ratelimit;

	if (ratelimit < 10)
		return false;  ---> always returns here

	ratelimit++;           ---> no chance to run

Make it check for >= 10 instead.

Fixes: 0345691b24c0 ("tick/rcu: Stop allowing RCU_SOFTIRQ in idle")
Signed-off-by: Wen Yang <wenyang.linux@foxmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/tencent_5AAA3EEAB42095C9B7740BE62FBF9A67E007@qq.com
2023-06-18 22:41:53 +02:00
Li zeming
fc4b4d96f7 alarmtimer: Remove unnecessary (void *) cast
Pointers of type void * do not require a type cast when they are assigned
to a real pointer.

Signed-off-by: Li zeming <zeming@nfschina.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230609182059.4509-1-zeming@nfschina.com
2023-06-18 22:41:53 +02:00
Li zeming
986af8dc5a alarmtimer: Remove unnecessary initialization of variable 'ret'
ret is assigned before checked, so it does not need to initialize the
variable

Signed-off-by: Li zeming <zeming@nfschina.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230609182856.4660-1-zeming@nfschina.com
2023-06-18 22:41:53 +02:00
Lukas Bulwahn
b9a40f24d8 posix-timers: Refer properly to CONFIG_HIGH_RES_TIMERS
Commit c78f261e5dcb ("posix-timers: Clarify posix_timer_fn() comments")
turns an ifdef CONFIG_HIGH_RES_TIMERS into an conditional on
"IS_ENABLED(CONFIG_HIGHRES_TIMERS)"; note that the new conditional refers
to "HIGHRES_TIMERS" not "HIGH_RES_TIMERS" as before.

Fix this typo introduced in that refactoring.

Fixes: c78f261e5dcb ("posix-timers: Clarify posix_timer_fn() comments")
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230609094643.26253-1-lukas.bulwahn@gmail.com
2023-06-18 22:41:53 +02:00
Thomas Gleixner
b96ce4931f posix-timers: Polish coding style in a few places
Make it consistent with the TIP tree documentation.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.888493625@linutronix.de
2023-06-18 22:41:53 +02:00
Thomas Gleixner
200dbd6d14 posix-timers: Remove pointless comments
Documenting the obvious is just consuming space for no value.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.832240451@linutronix.de
2023-06-18 22:41:52 +02:00
Thomas Gleixner
84999b8bdb posix-timers: Clarify posix_timer_fn() comments
Make the issues vs. SIG_IGN understandable and remove the 15 years old
promise that a proper solution is already on the horizon.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/874jnrdmrq.ffs@tglx
2023-06-18 22:41:52 +02:00
Thomas Gleixner
02972d7955 posix-timers: Clarify posix_timer_rearm() comment
Yet another incomprehensible piece of art.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.724863461@linutronix.de
2023-06-18 22:41:52 +02:00
Thomas Gleixner
c575689d66 posix-timers: Comment SIGEV_THREAD_ID properly
Replace the word salad.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.672220780@linutronix.de
2023-06-18 22:41:51 +02:00
Thomas Gleixner
52f090b164 posix-timers: Add proper comments in do_timer_create()
The comment about timer lifetime at the end of the function is misplaced
and uncomprehensible.

Make it understandable and put it at the right place. Add a new comment
about the visibility of the new timer ID to user space.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.619897296@linutronix.de
2023-06-18 22:41:51 +02:00
Thomas Gleixner
640fe745d7 posix-timers: Document nanosleep() details
The descriptions for common_nsleep() is wrong and common_nsleep_timens()
lacks any form of comment.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.567072835@linutronix.de
2023-06-18 22:41:51 +02:00
Thomas Gleixner
3561fcb402 posix-timers: Document sys_clock_settime() permissions in place
The documentation of sys_clock_settime() permissions is at a random place
and mostly word salad.

Remove it and add a concise comment into sys_clock_settime().

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.514700292@linutronix.de
2023-06-18 22:41:51 +02:00
Thomas Gleixner
65cade468d posix-timers: Document sys_clock_getoverrun()
Document the syscall in detail and with coherent sentences.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.462051641@linutronix.de
2023-06-18 22:41:50 +02:00
Thomas Gleixner
a86e928433 posix-timers: Document common_clock_get() correctly
Replace another confusing and inaccurate set of comments.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.409169321@linutronix.de
2023-06-18 22:41:50 +02:00
Thomas Gleixner
01679b5db7 posix-timers: Document sys_clock_getres() correctly
The decades old comment about Posix clock resolution is confusing at best.

Remove it and add a proper explanation to sys_clock_getres().

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.356427330@linutronix.de
2023-06-18 22:41:50 +02:00
Thomas Gleixner
8cc96ca2c7 posix-timers: Split release_posix_timers()
release_posix_timers() is called for cleaning up both hashed and unhashed
timers. The cases are differentiated by an argument and the usage is
hideous.

Seperate the actual free path out and use it for unhashed timers. Provide a
function for hashed timers.

No functional change.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.301432503@linutronix.de
2023-06-18 22:41:50 +02:00
Thomas Gleixner
11fbe6cd41 posix-timers: Remove pointless irqsafe from hash_lock
All usage of hash_lock is in thread context. No point in using
spin_lock_irqsave()/irqrestore() for a single usage site.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.249063953@linutronix.de
2023-06-18 22:41:49 +02:00
Thomas Gleixner
72786ff23d posix-timers: Set k_itimer:: It_signal to NULL on exit()
Technically it's not required to set k_itimer::it_signal to NULL on exit()
because there is no other thread anymore which could lookup the timer
concurrently.

Set it to NULL for consistency sake and add a comment to that effect.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.196462644@linutronix.de
2023-06-18 22:41:49 +02:00
Thomas Gleixner
028cf5eaa1 posix-timers: Annotate concurrent access to k_itimer:: It_signal
k_itimer::it_signal is read lockless in the RCU protected hash lookup, but
it can be written concurrently in the timer_create() and timer_delete()
path. Annotate these places with READ_ONCE() and WRITE_ONCE()

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.143596887@linutronix.de
2023-06-18 22:41:49 +02:00
Thomas Gleixner
ae88967d71 posix-timers: Add comments about timer lookup
Document how the timer ID validation in the hash table works.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.091081515@linutronix.de
2023-06-18 22:41:49 +02:00
Thomas Gleixner
8d44b958a1 posix-timers: Cleanup comments about timer ID tracking
Describe the hash table properly and remove the IDR leftover comments.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183313.038444551@linutronix.de
2023-06-18 22:41:48 +02:00
Thomas Gleixner
7d99090266 posix-timers: Clarify timer_wait_running() comment
Explain it better and add the CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y aspect
for completeness.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230425183312.985681995@linutronix.de
2023-06-18 22:41:48 +02:00
Thomas Gleixner
8ce8849dd1 posix-timers: Ensure timer ID search-loop limit is valid
posix_timer_add() tries to allocate a posix timer ID by starting from the
cached ID which was stored by the last successful allocation.

This is done in a loop searching the ID space for a free slot one by
one. The loop has to terminate when the search wrapped around to the
starting point.

But that's racy vs. establishing the starting point. That is read out
lockless, which leads to the following problem:

CPU0	  	      	     	   CPU1
posix_timer_add()
  start = sig->posix_timer_id;
  lock(hash_lock);
  ...				   posix_timer_add()
  if (++sig->posix_timer_id < 0)
      			             start = sig->posix_timer_id;
     sig->posix_timer_id = 0;

So CPU1 can observe a negative start value, i.e. -1, and the loop break
never happens because the condition can never be true:

  if (sig->posix_timer_id == start)
     break;

While this is unlikely to ever turn into an endless loop as the ID space is
huge (INT_MAX), the racy read of the start value caught the attention of
KCSAN and Dmitry unearthed that incorrectness.

Rewrite it so that all id operations are under the hash lock.

Reported-by: syzbot+5c54bd3eb218bb595aa9@syzkaller.appspotmail.com
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/87bkhzdn6g.ffs@tglx
2023-06-18 22:41:48 +02:00
Thomas Gleixner
9d9e522010 posix-timers: Prevent RT livelock in itimer_delete()
itimer_delete() has a retry loop when the timer is concurrently expired. On
non-RT kernels this just spin-waits until the timer callback has completed,
except for posix CPU timers which have HAVE_POSIX_CPU_TIMERS_TASK_WORK
enabled.

In that case and on RT kernels the existing task could live lock when
preempting the task which does the timer delivery.

Replace spin_unlock() with an invocation of timer_wait_running() to handle
it the same way as the other retry loops in the posix timer code.

Fixes: ec8f954a40da ("posix-timers: Use a callback for cancel synchronization on PREEMPT_RT")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/87v8g7c50d.ffs@tglx
2023-06-18 22:40:42 +02:00
Arnd Bergmann
b7a7ce1bb7 vdso/timens: Always provide arch_get_vdso_data() prototype for vdso
The arch_get_vdso_data() function is defined separately on each architecture,
but only called when CONFIG_TIME_NS is set. If the definition is a global
function, this causes a W=1 warning without TIME_NS:

arch/x86/entry/vdso/vma.c:35:19: error: no previous prototype for 'arch_get_vdso_data' [-Werror=missing-prototypes]

Move the prototype out of the #ifdef block to reliably turn off that
warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230517131102.934196-15-arnd@kernel.org
2023-05-31 21:45:49 +02:00
Linus Torvalds
7877cb91f1 Linux 6.4-rc4 v6.4-rc4 2023-05-28 07:49:00 -04:00
Linus Torvalds
f8b2507c26 A single fix for x86:
- Prevent a bogus setting for the number of HT siblings, which is caused
    by the CPUID evaluation trainwreck of X86. That recomputes the value
    for each CPU, so the last CPU "wins". That can cause completely bogus
    sibling values.
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Merge tag 'x86-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cpu fix from Thomas Gleixner:
 "A single fix for x86:

   - Prevent a bogus setting for the number of HT siblings, which is
     caused by the CPUID evaluation trainwreck of X86. That recomputes
     the value for each CPU, so the last CPU "wins". That can cause
     completely bogus sibling values"

* tag 'x86-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/topology: Fix erroneous smp_num_siblings on Intel Hybrid platforms
2023-05-28 07:42:05 -04:00
Linus Torvalds
2d5438f4c6 A small set of perf fixes:
- Make the CHA discovery based on MSR readout to work around broken
    discovery tables in some SPR firmwares.
 
  - Prevent saving PEBS configuration which has software bits set that
    cause a crash when restored into the relevant MSR.
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Merge tag 'perf-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Thomas Gleixner:
 "A small set of perf fixes:

   - Make the MSR-readout based CHA discovery work around broken
     discovery tables in some SPR firmwares.

   - Prevent saving PEBS configuration which has software bits set that
     cause a crash when restored into the relevant MSR"

* tag 'perf-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/uncore: Correct the number of CHAs on SPR
  perf/x86/intel: Save/restore cpuc->active_pebs_data_cfg when using guest PEBS
2023-05-28 07:37:23 -04:00
Linus Torvalds
abbf7fa15b A set of unwinder and tooling fixes:
- Ensure that the stack pointer on x86 is aligned again so that the
     unwinder does not read past the end of the stack
 
   - Discard .note.gnu.property section which has a pointlessly different
     alignment than the other note sections. That confuses tooling of all
     sorts including readelf, libbpf and pahole.
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Merge tag 'objtool-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull unwinder fixes from Thomas Gleixner:
 "A set of unwinder and tooling fixes:

   - Ensure that the stack pointer on x86 is aligned again so that the
     unwinder does not read past the end of the stack

   - Discard .note.gnu.property section which has a pointlessly
     different alignment than the other note sections. That confuses
     tooling of all sorts including readelf, libbpf and pahole"

* tag 'objtool-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/show_trace_log_lvl: Ensure stack pointer is aligned, again
  vmlinux.lds.h: Discard .note.gnu.property section
2023-05-28 07:33:29 -04:00
Linus Torvalds
d8f14b84fe Two fixes for debugobjects:
- Prevent that the allocation path wakes up kswapd. That's a long
     standing issue due to the GFP_ATOMIC allocation flag. As debug objects
     can be invoked from pretty much any context waking kswapd can end up
     in arbitrary lock chains versus the waitqueue lock.
 
   - Correct the explicit lockdep wait-type violation in
     debug_object_fill_pool().
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Merge tag 'core-debugobjects-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull debugobjects fixes from Thomas Gleixner:
 "Two fixes for debugobjects:

   - Prevent the allocation path from waking up kswapd.

     That's a long standing issue due to the GFP_ATOMIC allocation flag.
     As debug objects can be invoked from pretty much any context waking
     kswapd can end up in arbitrary lock chains versus the waitqueue
     lock

   - Correct the explicit lockdep wait-type violation in
     debug_object_fill_pool()"

* tag 'core-debugobjects-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  debugobjects: Don't wake up kswapd from fill_pool()
  debugobjects,locking: Annotate debug_object_fill_pool() wait type violation
2023-05-28 07:15:33 -04:00
Linus Torvalds
9bd5386c65 A set of fixes for interrupt chip drivers:
- Prevent loss of state in the MIPS GIC interrupt controller.
 
   - Disable pseudo NMIs on Mediatek based Chromebooks as they have
     firmware issues which cause instantenous chrashes and freezes
     wen pseudo NMIs are used.
 
   - Fix the error handling path in the MBIGEN driver and a defined but not
     used warning in the meson-gpio interrupt chip driver.
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Merge tag 'irq-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fixes from Thomas Gleixner:
 "A set of fixes for interrupt chip drivers:

   - Prevent loss of state in the MIPS GIC interrupt controller

   - Disable pseudo NMIs on Mediatek based Chromebooks as they have
     firmware issues which cause instantenous chrashes and freezes wen
     pseudo NMIs are used

   - Fix the error handling path in the MBIGEN driver and a defined but
     not used warning in the meson-gpio interrupt chip driver"

* tag 'irq-urgent-2023-05-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/mbigen: Unify the error handling in mbigen_of_create_domain()
  irqchip/meson-gpio: Mark OF related data as maybe unused
  irqchip/mips-gic: Use raw spinlock for gic_lock
  irqchip/mips-gic: Don't touch vl_map if a local interrupt is not routable
  irqchip/gic-v3: Disable pseudo NMIs on Mediatek devices w/ firmware issues
  dt-bindings: interrupt-controller: arm,gic-v3: Add quirk for Mediatek SoCs w/ broken FW
2023-05-28 07:12:21 -04:00
Linus Torvalds
045049cb38 - fixes to get alchemy platform back in shape
- fix for initrd detection
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Merge tag 'mips-fixes_6.4_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS fixes from Thomas Bogendoerfer:

 - fixes to get alchemy platform back in shape

 - fix for initrd detection

* tag 'mips-fixes_6.4_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  mips: Move initrd_start check after initrd address sanitisation.
  MIPS: Alchemy: fix dbdma2
  MIPS: Restore Au1300 support
  MIPS: unhide PATA_PLATFORM
2023-05-28 07:08:52 -04:00
Linus Torvalds
416839029e powerpc fixes for 6.4 #3
- Reinstate ARCH_FORCE_MAX_ORDER ranges to fix various breakage.
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Merge tag 'powerpc-6.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fix from Michael Ellerman:

 - Reinstate ARCH_FORCE_MAX_ORDER ranges to fix various breakage

* tag 'powerpc-6.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/mm: Reinstate ARCH_FORCE_MAX_ORDER ranges
2023-05-27 18:09:18 -07:00
Linus Torvalds
4e893b5aa4 xen: branch for v6.4-rc4
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Merge tag 'for-linus-6.4-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:

 - a double free fix in the Xen pvcalls backend driver

 - a fix for a regression causing the MSI related sysfs entries to not
   being created in Xen PV guests

 - a fix in the Xen blkfront driver for handling insane input data
   better

* tag 'for-linus-6.4-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  x86/pci/xen: populate MSI sysfs entries
  xen/pvcalls-back: fix double frees with pvcalls_new_active_socket()
  xen/blkfront: Only check REQ_FUA for writes
2023-05-27 09:42:56 -07:00
Linus Torvalds
957f3f8e53 Char/Misc fixes for 6.4-rc4
Here are some small driver fixes for 6.4-rc4.  They are just two
 different types:
   - binder fixes and reverts for reported problems and regressions in
     the binder "driver".
   - coresight driver fixes for reported problems.
 
 All of these have been in linux-next for over a week with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc fixes from Greg KH:
 "Here are some small driver fixes for 6.4-rc4. They are just two
  different types:

   - binder fixes and reverts for reported problems and regressions in
     the binder "driver".

   - coresight driver fixes for reported problems.

  All of these have been in linux-next for over a week with no reported
  problems"

* tag 'char-misc-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  binder: fix UAF of alloc->vma in race with munmap()
  binder: add lockless binder_alloc_(set|get)_vma()
  Revert "android: binder: stop saving a pointer to the VMA"
  Revert "binder_alloc: add missing mmap_lock calls when using the VMA"
  binder: fix UAF caused by faulty buffer cleanup
  coresight: perf: Release Coresight path when alloc trace id failed
  coresight: Fix signedness bug in tmc_etr_buf_insert_barrier_packet()
2023-05-27 09:14:43 -07:00
Linus Torvalds
49572d5361 cxl fixes for v6.4-rc4
- Stop trusting capacity data before the "media ready" indication
 
 - Add missing HDM decoder capability enable for the cold-plug case
 
 - Fix a debug message induced crash
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Merge tag 'cxl-fixes-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull compute express link fixes from Dan Williams:
 "The 'media ready' series prevents the driver from acting on bad
  capacity information, and it moves some checks earlier in the init
  sequence which impacts topics in the queue for 6.5.

  Additional hotplug testing uncovered a missing enable for memory
  decode. A debug crash fix is also included.

  Summary:

   - Stop trusting capacity data before the "media ready" indication

   - Add missing HDM decoder capability enable for the cold-plug case

   - Fix a debug message induced crash"

* tag 'cxl-fixes-6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl: Explicitly initialize resources when media is not ready
  cxl/port: Fix NULL pointer access in devm_cxl_add_port()
  cxl: Move cxl_await_media_ready() to before capacity info retrieval
  cxl: Wait Memory_Info_Valid before access memory related info
  cxl/port: Enable the HDM decoder capability for switch ports
2023-05-26 17:45:24 -07:00
Linus Torvalds
18713e8a68 ARM: SoC fixes for 6.4
There have not been a lot of fixes for for the soc tree in 6.4, but
 these have been sitting here for too long.
 
 For the devicetree side, there is one minor warning fix for vexpress,
 the rest all all for the the NXP i.MX platforms: SoC specific bugfixes
 for the iMX8 clocks and its USB-3.0 gadget device, as well as board
 specific fixes for regulators and the phy on some of the i.MX boards.
 
 The microchip risc-v and arm32 maintainers now also add a shared
 maintainer file entry for the arm64 parts.
 
 The remaining fixes are all for firmware drivers, addressing mistakes in
 the optee, scmi and ff-a firmware driver implementation, mostly in the
 error handling code, incorrect use of the alloc_workqueue() interface in
 SCMI, and compatibility with corner cases of the firmware implementation.
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Merge tag 'arm-fixes-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "There have not been a lot of fixes for for the soc tree in 6.4, but
  these have been sitting here for too long.

  For the devicetree side, there is one minor warning fix for vexpress,
  the rest all all for the the NXP i.MX platforms: SoC specific bugfixes
  for the iMX8 clocks and its USB-3.0 gadget device, as well as board
  specific fixes for regulators and the phy on some of the i.MX boards.

  The microchip risc-v and arm32 maintainers now also add a shared
  maintainer file entry for the arm64 parts.

  The remaining fixes are all for firmware drivers, addressing mistakes
  in the optee, scmi and ff-a firmware driver implementation, mostly in
  the error handling code, incorrect use of the alloc_workqueue()
  interface in SCMI, and compatibility with corner cases of the firmware
  implementation"

* tag 'arm-fixes-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  MAINTAINERS: update arm64 Microchip entries
  arm64: dts: imx8: fix USB 3.0 Gadget Failure in QM & QXPB0 at super speed
  dt-binding: cdns,usb3: Fix cdns,on-chip-buff-size type
  arm64: dts: colibri-imx8x: delete adc1 and dsp
  arm64: dts: colibri-imx8x: fix iris pinctrl configuration
  arm64: dts: colibri-imx8x: move pinctrl property from SoM to eval board
  arm64: dts: colibri-imx8x: fix eval board pin configuration
  arm64: dts: imx8mp: Fix video clock parents
  ARM: dts: imx6qdl-mba6: Add missing pvcie-supply regulator
  ARM: dts: imx6ull-dhcor: Set and limit the mode for PMIC buck 1, 2 and 3
  arm64: dts: imx8mn-var-som: fix PHY detection bug by adding deassert delay
  arm64: dts: imx8mn: Fix video clock parents
  firmware: arm_ffa: Set reserved/MBZ fields to zero in the memory descriptors
  firmware: arm_ffa: Fix FFA device names for logical partitions
  firmware: arm_ffa: Fix usage of partition info get count flag
  firmware: arm_ffa: Check if ffa_driver remove is present before executing
  arm64: dts: arm: add missing cache properties
  ARM: dts: vexpress: add missing cache properties
  firmware: arm_scmi: Fix incorrect alloc_workqueue() invocation
  optee: fix uninited async notif value
2023-05-26 16:17:56 -07:00