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git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds
PULL LED updates from Lee Jones:
- Remove unused local header files from various drivers
- Revert platform driver removal to the original method for consistency
- Introduce ordered workqueues for LED events, replacing the less
efficient system_wq
- Switch to a safer iteration macro in several drivers to prevent
potential memory leaks
- Fix a refcounting bug in the mt6360 flash LED driver
- Fix an uninitialized variable in the mt6370_mc_pattern_clear()
function
- Resolve Smatch warnings in the leds-bcm6328 driver
- Address a potential NULL pointer dereference in the brightness_show()
function
- Fix an incorrect format specifier in the ss4200 driver
- Prevent a resource leak in the max5970 driver's probe function
- Add support for specifying the number of serial shift bits in the
device tree for the BCM63138 family
- Implement multicolor brightness control in the lp5562 driver
- Add a device tree property to override the default LED pin polarity
- Add a property to specify the default brightness value when the LED
is initially on
- Set missing timing properties for the ktd2692 driver
- Document the "rc-feedback" trigger for controlling LEDs based on
remote control activity
- Convert text bindings to YAML for the pca955x driver to enable device
tree validation
- Remove redundant checks for invalid channel numbers in the lp55xx
driver
- Update the MAINTAINERS file with current contact information
* tag 'leds-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (46 commits)
leds: ss4200: Fix the wrong format specifier for 'blinking'
leds: pwm: Add optional DT property default-brightness
dt-bindings: leds: pwm: Add default-brightness property
leds: class: Protect brightness_show() with led_cdev->led_access mutex
leds: ktd2692: Set missing timing properties
leds: max5970: Fix unreleased fwnode_handle in probe function
leds: Introduce ordered workqueue for LEDs events instead of system_wq
MAINTAINERS: Replace Siemens IPC related bouncing maintainers
leds: bcm6328: Replace divide condition with comparison for shift value
leds: lp55xx: Remove redundant test for invalid channel number
dt-bindings: leds: pca955x: Convert text bindings to YAML
leds: rgb: leds-mt6370-rgb: Fix uninitialized variable 'ret' in mt6370_mc_pattern_clear
leds: lp5562: Add multicolor brightness control
dt-bindings: leds: Add 'active-high' property
leds: Switch back to struct platform_driver::remove()
leds: bcm63138: Add some register defines
leds: bcm63138: Handle shift register config
leds: bcm63138: Use scopes and guards
dt-bindings: leds: bcm63138: Add shift register bits
leds: leds-gpio-register: Reorganize kerneldoc parameter names
...
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
- Several drivers, including atmel-flexcom/rk8xx-core, palmas, and
tps65010, have undergone minor code improvements to enhance
consistency and fix race conditions.
- The syscon driver now utilizes the regmap max_register_is_0
capability for consistent register map configuration across syscons
of all sizes.
- New device support has been added for QCS8300, qcs615, SA8255p, and
samsung,s2dos05, expanding the range of compatible hardware.
- The cros_ec driver now supports loading cros_ec_ucsi on supported ECs
and avoids loading the charger with UCSI, streamlining functionality.
- The bd96801 driver now utilizes the more modern maple tree register
cache, improving performance.
- The da9052-spi driver has undergone a fix to change the read-mask to
write-mask, preventing potential issues.
- Unused declarations in max77693 have been removed, and support for
samsung,s2dos05 has been added, enhancing code clarity and device
compatibility.
- Error handling in cs42l43 has been fixed to avoid unbalanced
regulator put and ensure proper synchronization during driver
removal.
- The wcd934x driver now uses MODULE_DEVICE_TABLE() instead of
MODULE_ALIAS(), improving code consistency.
- Documentation for qcom,tcsr, syscon, and atmel-smc has been updated
and reorganized for better clarity and maintainability.
- The intel_soc_pmic_bxtwc driver has undergone significant
improvements, including the use of IRQ domains for various devices,
fixing IRQ domain names duplication, and code refactoring for better
consistency and maintainability.
- The ipaq-micro driver has received a fix for a missing break
statement in the default case, enhancing code robustness.
- Support for the AXP323 PMIC has been added to the axp20x driver,
along with ensuring a clear relationship between IDs and model names,
and allowing multiple regulators, broadening hardware compatibility.
- The cs42l43 driver now disables IRQs during suspend for improved
power management.
- The adp5585 driver has reduced its dependencies by dropping the
obsolete dependency on COMPILE_TEST.
- Initial support for the MT6328 PMIC has been added to the mt6397
driver, expanding the range of supported hardware.
- The rtc-bd70528 driver has been simplified by dropping the IC name
from IRQ, improving code readability.
- Documentation for qcom,spmi-pmic, ti,twl, and zii,rave-sp has been
updated to enhance clarity and incorporate new features.
- The rt5033 driver has received a fix for a missing
regmap_del_irq_chip() in the error handling path.
- New device support has been added for MSM8917, and the
intel_soc_pmic_crc driver now supports non-ACPI instantiated
i2c_client.
- The 88pm886 driver has added support for the RTC cell, and the tqmx86
driver has improved its GPIO IRQ setup and added I2C IRQ support,
increasing functionality.
- The sprd,sc2731 DT schema has been updated and converted to YAML
format for better readability and maintainability.
* tag 'mfd-next-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (62 commits)
dt-bindings: mfd: bd71828: Use charger resistor in mOhm instead of MOhm
dt-bindings: mfd: sprd,sc2731: Convert to YAML
mfd: tqmx86: Add I2C IRQ support
mfd: tqmx86: Make IRQ setup errors non-fatal
mfd: tqmx86: Refactor GPIO IRQ setup
mfd: tqmx86: Improve gpio_irq module parameter description
mfd: tqmx86: Add board definitions for TQMx120UC, TQMx130UC and TQMxE41S
mfd: 88pm886: Add the RTC cell
dt-bindings: mfd: Add Realtek RTL9300 switch peripherals
mfd: intel_soc_pmic_crc: Add support for non ACPI instantiated i2c_client
mfd: intel_soc_pmic_*: Consistently use filename as driver name
dt-bindings: mfd: qcom,tcsr: Add compatible for MSM8917
mfd: rt5033: Fix missing regmap_del_irq_chip()
mfd: cgbc-core: Fix error handling paths in cgbc_init_device()
dt-bindings: mfd: aspeed: Support for AST2700
mfd: Switch back to struct platform_driver::remove()
dt-bindings: mfd: qcom,spmi-pmic: Document PMICs added in SM8750
mfd: rtc: bd7xxxx Drop IC name from IRQ
mfd: mt6397: Add initial support for MT6328
mfd: adp5585: Drop obsolete dependency on COMPILE_TEST
...
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kunit updates from Shuah Khan:
- fix user-after-free (UAF) bug in kunit_init_suite()
- add option to kunit tool to print just the summary of test results
- add option to kunit tool to print just the failed test results
- fix kunit_zalloc_skb() to use user passed in gfp value instead of
hardcoding GFP_KERNEL
- fixe kunit_zalloc_skb() kernel doc to include allocation flags
variable
- update KUnit email address for Brendan Higgins
- add LoongArch config to qemu_configs
- allow overriding the shutdown mode from qemu config
- enable shutdown in loongarch qemu_config
- fix potential null dereference in kunit_device_driver_test()
- fix debugfs to use IS_ERR() for alloc_string_stream() error check
* tag 'linux_kselftest-kunit-6.13-rc1-fixed' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: qemu_configs: loongarch: Enable shutdown
kunit: tool: Allow overriding the shutdown mode from qemu config
kunit: qemu_configs: Add LoongArch config
kunit: debugfs: Use IS_ERR() for alloc_string_stream() error check
kunit: Fix potential null dereference in kunit_device_driver_test()
MAINTAINERS: Update KUnit email address for Brendan Higgins
kunit: string-stream: Fix a UAF bug in kunit_init_suite()
kunit: tool: print failed tests only
kunit: tool: Only print the summary
kunit: skb: add gfp to kernel doc for kunit_zalloc_skb()
kunit: skb: use "gfp" variable instead of hardcoding GFP_KERNEL
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The scheduler added NEED_RESCHED_LAZY scheduling. Record this state as
part of trace flags and expose it in the need_resched field.
Record and expose NEED_RESCHED_LAZY.
[bigeasy: Commit description, documentation bits.]
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/20241122202849.7DfYpJR0@linutronix.de
Reviewed-by: Ankur Arora <ankur.a.arora@oracle.com>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Incorrectly the hwmon with PMU name test didn't pass "true". Fix and
address issue with hwmon_pmu__config_terms needing to load events - a
load bearing assert fired. Also fix missing list deletion when putting
the hwmon test PMU and lower some debug warnings to make the hwmon PMU
less spammy in verbose mode.
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20241121000955.536930-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Non-zero values led to mismatches in testing. This was reproducible
with -fsanitize=undefined.
Reported-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Closes: https://lore.kernel.org/lkml/Zzdtj0PEWEX3ATwL@x1/
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20241119230033.115369-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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In the error path when failing to parse events the evlist is being
deleted twice, keep the one after the out label.
Fixes: 531ee0fd4836994f ("perf test: Add hwmon "PMU" test")
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/ZzzoJNNcJJVnPCCe@x1
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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On s390 the perf test case ftrace sometimes fails as follows:
# ./perf test ftrace
79: perf ftrace tests : FAILED!
#
The failure depends on the kernel .config file. Some configurations
always work fine, some do not. The ftrace profile test mostly fails,
because the ring buffer was not large enough, and some lines
(especially the interesting ones with nanosleep in it) where dropped.
To achieve success for all tested kernel configurations, enlarge
the buffer to store the traces completely without wrapping.
The default buffer size is too small for all kernel configurations.
Set the buffer size of for the ftrace profile test to 16 MB.
Output after:
# ./perf test ftrace
79: perf ftrace tests : Ok
#
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: agordeev@linux.ibm.com
Cc: gor@linux.ibm.com
Cc: hca@linux.ibm.com
Cc: sumanthk@linux.ibm.com
Link: https://lore.kernel.org/r/20241119064856.641446-1-tmricht@linux.ibm.com
Suggested-by: Sven Schnelle <svens@linux.ibm.com>
Suggested-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Directly return -ENOMEM when pfi allocation fails,
instead of performing other operations on pfi.
Fixes: 0fe2b18ddc40 ("perf bpf-filter: Support multiple events properly")
Signed-off-by: Hao Ge <gehao@kylinos.cn>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: hao.ge@linux.dev
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20241113030537.26732-1-hao.ge@linux.dev
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Use name to avoid potential other hwmon PMUs.
Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20241118052638.754981-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing updates from Steven Rostedt:
- Addition of faultable tracepoints
There's a tracepoint attached to both a system call entry and exit.
This location is known to allow page faults. The tracepoints are
called under an rcu_read_lock() which does not allow faults that can
sleep. This limits the ability of tracepoint handlers to page fault
in user space system call parameters. Now these tracepoints have been
made "faultable", allowing the callbacks to fault in user space
parameters and record them.
Note, only the infrastructure has been implemented. The consumers
(perf, ftrace, BPF) now need to have their code modified to allow
faults.
- Fix up of BPF code for the tracepoint faultable logic
- Update tracepoints to use the new static branch API
- Remove trace_*_rcuidle() variants and the SRCU protection they used
- Remove unused TRACE_EVENT_FL_FILTERED logic
- Replace strncpy() with strscpy() and memcpy()
- Use replace per_cpu_ptr(smp_processor_id()) with this_cpu_ptr()
- Fix perf events to not duplicate samples when tracing is enabled
- Replace atomic64_add_return(1, counter) with
atomic64_inc_return(counter)
- Make stack trace buffer 4K instead of PAGE_SIZE
- Remove TRACE_FLAG_IRQS_NOSUPPORT flag as it was never used
- Get the true return address for function tracer when function graph
tracer is also running.
When function_graph trace is running along with function tracer, the
parent function of the function tracer sometimes is
"return_to_handler", which is the function graph trampoline to record
the exit of the function. Use existing logic that calls into the
fgraph infrastructure to find the real return address.
- Remove (un)regfunc pointers out of tracepoint structure
- Added last minute bug fix for setting pending modules in stack
function filter.
echo "write*:mod:ext3" > /sys/kernel/tracing/stack_trace_filter
Would cause a kernel NULL dereference.
- Minor clean ups
* tag 'trace-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (31 commits)
ftrace: Fix regression with module command in stack_trace_filter
tracing: Fix function name for trampoline
ftrace: Get the true parent ip for function tracer
tracing: Remove redundant check on field->field in histograms
bpf: ensure RCU Tasks Trace GP for sleepable raw tracepoint BPF links
bpf: decouple BPF link/attach hook and BPF program sleepable semantics
bpf: put bpf_link's program when link is safe to be deallocated
tracing: Replace strncpy() with strscpy() when copying comm
tracing: Add might_fault() check in __DECLARE_TRACE_SYSCALL
tracing: Fix syscall tracepoint use-after-free
tracing: Introduce tracepoint_is_faultable()
tracing: Introduce tracepoint extended structure
tracing: Remove TRACE_FLAG_IRQS_NOSUPPORT
tracing: Replace multiple deprecated strncpy with memcpy
tracing: Make percpu stack trace buffer invariant to PAGE_SIZE
tracing: Use atomic64_inc_return() in trace_clock_counter()
trace/trace_event_perf: remove duplicate samples on the first tracepoint event
tracing/bpf: Add might_fault check to syscall probes
tracing/perf: Add might_fault check to syscall probes
tracing/ftrace: Add might_fault check to syscall probes
...
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing tools updates from Steven Rostedt:
- Add ':' to getopt option 'trace-buffer-size' in timerlat_hist for
consistency
- Remove unused sched_getattr define
- Rename sched_setattr() helper to syscall_sched_setattr() to avoid
conflicts
- Update counters to long from int to avoid overflow
- Add libcpupower dependency detection
- Add --deepest-idle-state to timerlat to limit deep idle sleeps
- Other minor clean ups and documentation changes
* tag 'trace-tools-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
verification/dot2: Improve dot parser robustness
tools/rtla: Improve exception handling in timerlat_load.py
tools/rtla: Enhance argument parsing in timerlat_load.py
tools/rtla: Improve code readability in timerlat_load.py
rtla/timerlat: Do not set params->user_workload with -U
rtla: Documentation: Mention --deepest-idle-state
rtla/timerlat: Add --deepest-idle-state for hist
rtla/timerlat: Add --deepest-idle-state for top
rtla/utils: Add idle state disabling via libcpupower
rtla: Add optional dependency on libcpupower
tools/build: Add libcpupower dependency detection
rtla/timerlat: Make timerlat_hist_cpu->*_count unsigned long long
rtla/timerlat: Make timerlat_top_cpu->*_count unsigned long long
tools/rtla: fix collision with glibc sched_attr/sched_set_attr
tools/rtla: drop __NR_sched_getattr
rtla: Fix consistency in getopt_long for timerlat_hist
rv: Fix a typo
tools/rv: Correct the grammatical errors in the comments
tools/rv: Correct the grammatical errors in the comments
rtla: use the definition for stdout fd when calling isatty()
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull trace ring-buffer updates from Steven Rostedt:
- Limit time interrupts are disabled in rb_check_pages()
rb_check_pages() is called after the ring buffer size is updated to
make sure that the ring buffer has not been corrupted. Commit
c2274b908db0 ("ring-buffer: Fix a race between readers and resize
checks") fixed a race with the check pages and simultaneous resizes
to the ring buffer by adding a raw_spin_lock_irqsave() around the
check operation. Although this was a simple fix, it would hold
interrupts disabled for non determinative amount of time. This could
harm PREEMPT_RT operations.
Instead, modify the logic by adding a counter when the buffer is
modified and to release the raw_spin_lock() at each iteration. It
checks the counter under the lock to see if a modification happened
during the loop, and if it did, it would restart the loop up to 3
times. After 3 times, it will simply exit the check, as it is
unlikely that would ever happen as buffer resizes are rare
occurrences.
- Replace some open coded str_low_high() with the helper
- Fix some documentation/comments
* tag 'trace-ring-buffer-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
ring-buffer: Correct a grammatical error in a comment
ring-buffer: Use str_low_high() helper in ring_buffer_producer()
ring-buffer: Reorganize kerneldoc parameter names
ring-buffer: Limit time with disabled interrupts in rb_check_pages()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull tdx updates from Dave Hansen:
"These essentially refine some interactions between TDX guests and
VMMs.
The first leverages a new TDX module feature to runtime disable the
ability for a VM to inject #VE exceptions. Before this feature, there
was only a static on/off switch and the guest had to panic if it was
configured in a bad state.
The second lets the guest opt in to be able to access the topology
CPUID leaves. Before this, accesses to those leaves would #VE.
For both of these, it would have been nicest to just change the
default behavior, but some pesky "other" OSes evidently need to retain
the legacy behavior.
Summary:
- Add new infrastructure for reading TDX metadata
- Use the newly-available metadata to:
- Disable potentially nasty #VE exceptions
- Get more complete CPU topology information from the VMM"
* tag 'x86_tdx_for_6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/tdx: Enable CPU topology enumeration
x86/tdx: Dynamically disable SEPT violations from causing #VEs
x86/tdx: Rename tdx_parse_tdinfo() to tdx_setup()
x86/tdx: Introduce wrappers to read and write TD metadata
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc x86 updates from Dave Hansen:
"As usual for this branch, these are super random: a compile fix for
some newish LLVM checks and making sure a Kconfig text reference to
'RSB' matches the normal definition:
- Rework some CPU setup code to keep LLVM happy on 32-bit
- Correct RSB terminology in Kconfig text"
* tag 'x86_misc_for_6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu: Make sure flag_is_changeable_p() is always being used
x86/bugs: Correct RSB terminology in Kconfig
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull sgx update from Dave Hansen:
- Use vmalloc_array() instead of vmalloc()
* tag 'x86_sgx_for_6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sgx: Use vmalloc_array() instead of vmalloc()
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git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull cxl updates from Dave Jiang:
- Constify range_contains() input parameters to prevent changes
- Add support for displaying RCD capabilities in sysfs to support lspci
for CXL device
- Downgrade warning message to debug in cxl_probe_component_regs()
- Add support for adding a printf specifier '%pra' to emit 'struct
range' content:
- Add sanity tests for 'struct resource'
- Add documentation for special case
- Add %pra for 'struct range'
- Add %pra usage in CXL code
- Add preparation code for DCD support:
- Add range_overlaps()
- Add CDAT DSMAS table shared and read only flag in ACPICA
- Add documentation to 'struct dev_dax_range'
- Delay event buffer allocation in CXL PCI code until needed
- Use guard() in cxl_dpa_set_mode()
- Refactor create region code to consolidate common code
* tag 'cxl-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
cxl/region: Refactor common create region code
cxl/hdm: Use guard() in cxl_dpa_set_mode()
cxl/pci: Delay event buffer allocation
dax: Document struct dev_dax_range
ACPI/CDAT: Add CDAT/DSMAS shared and read only flag values
range: Add range_overlaps()
cxl/cdat: Use %pra for dpa range outputs
printf: Add print format (%pra) for struct range
Documentation/printf: struct resource add start == end special case
test printf: Add very basic struct resource tests
cxl: downgrade a warning message to debug level in cxl_probe_component_regs()
cxl/pci: Add sysfs attribute for CXL 1.1 device link status
cxl/core/regs: Add rcd_pcie_cap initialization
kernel/range: Const-ify range_contains parameters
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To avoid arch-specific code in general ACPI initialization flow,
introduce a weak symbol acpi_arch_init().
Currently, arm64 and riscv can utillize this to insert their
arch-specific flow.
In the future, other architectures can also have a chance to define
their own arch-specific ACPI initialization process if necessary.
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Miao Wang <shankerwangmiao@gmail.com>
Link: https://patch.msgid.link/20241121-intro-acpi-arch-init-v4-1-b1fb517e7d8b@gmail.com
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Merge additional cpuidle changes for 6.13-rc1:
- Make cpuidle_play_dead() try all idle states with :enter_dead()
callbacks and change their return type to void (Rafael Wysocki).
* pm-cpuidle:
cpuidle: Change :enter_dead() driver callback return type to void
cpuidle: Do not return from cpuidle_play_dead() on callback failures
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The Asus entries in the acpi_quirk_skip_dmi_ids[] table are the only
entries without a comment which model they apply to. Add these comments.
The Asus TF103C entry also is in the wrong place for what is supposed to
be an alphabetically sorted list. Move it up so that the list is properly
sorted and add a comment that the list is alphabetically sorted.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patch.msgid.link/20241116095825.11660-2-hdegoede@redhat.com
[ rjw: Changelog and subject edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The Acer Iconia One 8 A1-840 (not to be confused with the A1-840FHD which
is a different model) ships with Android 4.4 as factory OS and has the
usual broken DSDT issues for x86 Android tablets.
Add quirks to skip ACPI I2C client enumeration and disable ACPI battery/AC
and ACPI GPIO event handlers.
Also add the "INT33F5" HID for the TI PMIC used on this tablet to the list
of HIDs for which not to skip i2c_client instantiation, since we do want
an ACPI instantiated i2c_client for the PMIC.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patch.msgid.link/20241116095825.11660-1-hdegoede@redhat.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Both mvme147 and mvme16x platforms have their own RTC driver
implementations that duplicate functionality provided by the rtc-m48t59
driver. Adopt the rtc-m48t59 driver and remove the other ones.
Tested-by: Daniel Palmer <daniel@0x0f.com>
Signed-off-by: Finn Thain <fthain@linux-m68k.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/19a16bcc94c42ea9c5397b37b1918c2937e3faab.1731450735.git.fthain@linux-m68k.org
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Add GET_INFO ioctl to retrieve hardware information, including
AIE, clock, hardware context etc.
Co-developed-by: Min Ma <min.ma@amd.com>
Signed-off-by: Min Ma <min.ma@amd.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241118172942.2014541-11-lizhi.hou@amd.com
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When there is a hardware error, the NPU firmware notifies the host through
a mailbox message. The message includes details of the error, such as the
tile and column indexes where the error occurred.
The driver starts a thread to handle the NPU error message. The thread
stops the clients which are using the column where error occurred. Then
the driver resets that column.
Co-developed-by: Min Ma <min.ma@amd.com>
Signed-off-by: Min Ma <min.ma@amd.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241118172942.2014541-10-lizhi.hou@amd.com
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Implement PCI power management suspend and resume callbacks.
Co-developed-by: Narendra Gutta <VenkataNarendraKumar.Gutta@amd.com>
Signed-off-by: Narendra Gutta <VenkataNarendraKumar.Gutta@amd.com>
Co-developed-by: Xiaoming Ren <xiaoming.ren@amd.com>
Signed-off-by: Xiaoming Ren <xiaoming.ren@amd.com>
Co-developed-by: Min Ma <min.ma@amd.com>
Signed-off-by: Min Ma <min.ma@amd.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241118172942.2014541-9-lizhi.hou@amd.com
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Now that the main domain allocating path is calling this function it
doesn't make sense to leave it named _user. Change the name to
alloc_paging_flags() to mirror the new iommu_paging_domain_alloc_flags()
function.
A driver should implement only one of ops->domain_alloc_paging() or
ops->domain_alloc_paging_flags(). The former is a simpler interface with
less boiler plate that the majority of drivers use. The latter is for
drivers with a greater feature set (PASID, multiple page table support,
advanced iommufd support, nesting, etc). Additional patches will be needed
to achieve this.
Link: https://patch.msgid.link/r/2-v1-c252ebdeb57b+329-iommu_paging_flags_jgg@nvidia.com
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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It turns out all the drivers that are using this immediately call into
another function, so just make that function directly into the op. This
makes paging=NULL for domain_alloc_user and we can remove the argument in
the next patch.
The function mirrors the similar op in the viommu that allocates a nested
domain on top of the viommu's nesting parent. This version supports cases
where a viommu is not being used.
Link: https://patch.msgid.link/r/1-v1-c252ebdeb57b+329-iommu_paging_flags_jgg@nvidia.com
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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Add interfaces for user application to submit command and wait for its
completion.
Co-developed-by: Min Ma <min.ma@amd.com>
Signed-off-by: Min Ma <min.ma@amd.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241118172942.2014541-8-lizhi.hou@amd.com
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There different types of BOs are supported:
- shmem
A user application uses shmem BOs as input/output for its workload running
on NPU.
- device memory heap
The fixed size buffer dedicated to the device.
- device buffer
The buffer object allocated from device memory heap.
- command buffer
The buffer object created for delivering commands. The command buffer
object is small and pinned on creation.
New IOCTLs are added: CREATE_BO, GET_BO_INFO, SYNC_BO. SYNC_BO is used
to explicitly flush CPU cache for BO memory.
Co-developed-by: Min Ma <min.ma@amd.com>
Signed-off-by: Min Ma <min.ma@amd.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241118172942.2014541-7-lizhi.hou@amd.com
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The hardware can be shared among multiple user applications. The
hardware resources are allocated/freed based on the request from
user application via driver IOCTLs.
DRM_IOCTL_AMDXDNA_CREATE_HWCTX
Allocate tile columns and create a hardware context structure to track the
usage and status of the resources. A hardware context ID is returned for
XDNA command execution.
DRM_IOCTL_AMDXDNA_DESTROY_HWCTX
Release hardware context based on its ID. The tile columns belong to
this hardware context will be reclaimed.
DRM_IOCTL_AMDXDNA_CONFIG_HWCTX
Config hardware context. Bind the hardware context to the required
resources.
Co-developed-by: Min Ma <min.ma@amd.com>
Signed-off-by: Min Ma <min.ma@amd.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241118172942.2014541-6-lizhi.hou@amd.com
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The AI Engine consists of 2D array of tiles arranged as columns. Provides
the basic column allocation and release functions for the tile columns.
Co-developed-by: Min Ma <min.ma@amd.com>
Signed-off-by: Min Ma <min.ma@amd.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241118172942.2014541-5-lizhi.hou@amd.com
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The hardware mailboxes are used by the driver to submit requests to
firmware and receive the completion notices from hardware.
Initially, a management mailbox channel is up and running. The driver may
request firmware to create/destroy more channels dynamically through
management channel.
Add driver internal mailbox interfaces.
- create/destroy a mailbox channel instance
- send a message to the firmware through a specific channel
- wait for a notification from the specific channel
Co-developed-by: George Yang <George.Yang@amd.com>
Signed-off-by: George Yang <George.Yang@amd.com>
Co-developed-by: Min Ma <min.ma@amd.com>
Signed-off-by: Min Ma <min.ma@amd.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241118172942.2014541-4-lizhi.hou@amd.com
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AMD AI Engine forms the core of AMD NPU and can be used for accelerating
machine learning applications.
Add the driver to support AI Engine integrated to AMD CPU.
Only very basic functionalities are added.
- module and PCI device initialization
- firmware load
- power up
- low level hardware initialization
Co-developed-by: Narendra Gutta <VenkataNarendraKumar.Gutta@amd.com>
Signed-off-by: Narendra Gutta <VenkataNarendraKumar.Gutta@amd.com>
Co-developed-by: George Yang <George.Yang@amd.com>
Signed-off-by: George Yang <George.Yang@amd.com>
Co-developed-by: Min Ma <min.ma@amd.com>
Signed-off-by: Min Ma <min.ma@amd.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241118172942.2014541-3-lizhi.hou@amd.com
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AMD NPU (Neural Processing Unit) is a multi-user AI inference accelerator
integrated into AMD client APU. NPU enables efficient execution of Machine
Learning applications like CNN, LLM, etc. NPU is based on AMD XDNA
Architecture. NPU is managed by amdxdna driver.
Co-developed-by: Sonal Santan <sonal.santan@amd.com>
Signed-off-by: Sonal Santan <sonal.santan@amd.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241118172942.2014541-2-lizhi.hou@amd.com
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ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/iommu/linux into iommufd.git
Merge with Joerg's tree for dependencies on the next patches.
======================================
IOMMU Updates for Linux v6.13:
Including:
- Core Updates:
- Convert call-sites using iommu_domain_alloc() to more specific
versions and remove function.
- Introduce iommu_paging_domain_alloc_flags().
- Extend support for allocating PASID-capable domains to more
drivers.
- Remove iommu_present().
- Some smaller improvements.
- New IOMMU driver for RISC-V.
- Intel VT-d Updates:
- Add domain_alloc_paging support.
- Enable user space IOPFs in non-PASID and non-svm cases.
- Small code refactoring and cleanups.
- Add domain replacement support for pasid.
- AMD-Vi Updates:
- Adapt to iommu_paging_domain_alloc_flags() interface and alloc V2
page-tables by default.
- Replace custom domain ID allocator with IDA allocator.
- Add ops->release_domain() support.
- Other improvements to device attach and domain allocation code
paths.
- ARM-SMMU Updates:
- SMMUv2:
- Return -EPROBE_DEFER for client devices probing before their SMMU.
- Devicetree binding updates for Qualcomm MMU-500 implementations.
- SMMUv3:
- Minor fixes and cleanup for NVIDIA's virtual command queue driver.
- IO-PGTable:
- Fix indexing of concatenated PGDs and extend selftest coverage.
- Remove unused block-splitting support.
- S390 IOMMU:
- Implement support for blocking domain.
- Mediatek IOMMU:
- Enable 35-bit physical address support for mt8186.
- OMAP IOMMU driver:
- Adapt to recent IOMMU core changes and unbreak driver.
======================================
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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The documentation for vfree() says that passing in NULL is ok. Therefore
we can drop the null check as redundant.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202410301732.abF5Md4e-lkp@intel.com/
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Youssef Samir <quic_yabdulra@quicinc.com>
Reviewed-by: Carl Vanderlip <quic_carlv@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241117202629.1681358-1-quic_jhugo@quicinc.com
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Provide a guide for developers on how to debug code with a focus on the
media subsystem. This document aims to provide a rough overview over the
possibilities and a rational to help choosing the right tool for the
given circumstances.
Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241028-media_docs_improve_v3-v3-2-edf5c5b3746f@collabora.com
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|
This idea was formed after noticing that new developers experience
certain difficulty to navigate within the multitude of different
debugging options in the Kernel and while there often is good
documentation for the tools, the developer has to know first that they
exist and where to find them.
Add a general debugging section to the Kernel documentation, as an
easily locatable entry point to other documentation and as a general
guideline for the topic.
Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241028-media_docs_improve_v3-v3-1-edf5c5b3746f@collabora.com
|
|
There are currently some doubts about out-of-tree kernel modules licensed
under GPLv3 and if they are supposed to be able to use symbols exported
using EXPORT_SYMBOL_GPL.
Clarify that "Proprietary" means anything non-GPL2 even though the
license might be an open source license. Also disambiguate "GPL
compatible" to "GPLv2 compatible".
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241115103842.585207-2-ukleinek@kernel.org
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GFP_NOFS/GFP_NOIO
After the commit 451769ebb7e79 ("mm/vmalloc: alloc GFP_NO{FS,IO} for
vmalloc") in v5.17 it is now safe to use GFP_NOFS/GFP_NOIO flags
in [k]vmalloc, let's reflect it in documentation.
Signed-off-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241119093922.567138-1-ptikhomirov@virtuozzo.com
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Explain that a kernel-doc :identifiers: line can refer to a struct,
union, enum, or typedef as well as functions.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241119203201.110953-1-rdunlap@infradead.org
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Use proper spelling for 'discrete'. When at it, capitalize 'Linux',
which is common practice in the documentation.
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241120-pwrseq-doc-trivial-fixes-v1-1-19a70f4dd156@gmail.com
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Update references to most txt files to rst files.
Update one reference to an md file to a rst file.
Update one file path to its current location.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: linux-fsdevel@vger.kernel.org
Cc: Ian Kent <raven@themaw.net>
Cc: autofs@vger.kernel.org
Cc: Alexander Aring <aahringo@redhat.com>
Cc: David Teigland <teigland@redhat.com>
Cc: gfs2@lists.linux.dev
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Theodore Y. Ts'o <tytso@mit.edu>
Cc: fsverity@lists.linux.dev
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: ocfs2-devel@lists.linux.dev
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241120055246.158368-1-rdunlap@infradead.org
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There is no reason only the usbg transport would not be its own module,
so make it tristate.
In particular, this fixes a couple of issues the current bool had:
- trans_usbg was apparently not compiled at all when NET_9P=m
- the workaround added in commit 2193ede180dd ("net/9p/usbg: fix
CONFIG_USB_GADGET dependency") became redundant because a tristate item
cannot be built-in when its dependency is a module, so we can depend on
USB_GADGET "normally" again.
Cc: Michael Grzeschik <m.grzeschik@pengutronix.de>
Link: https://lkml.kernel.org/r/ZzhWRPDNwu225NWz@codewreck.org
Message-ID: <20241122144754.1231919-1-asmadeus@codewreck.org>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
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Kernel logs indicate an IRQ was double-freed.
Pass correct device ID during IRQ release.
Fixes: 71ebd71921e45 ("xen/9pfs: connect to the backend")
Signed-off-by: Alex Zenla <alex@edera.dev>
Signed-off-by: Alexander Merritt <alexander@edera.dev>
Signed-off-by: Ariadne Conill <ariadne@ariadne.space>
Reviewed-by: Juergen Gross <jgross@suse.com>
Message-ID: <20241121225100.5736-1-alexander@edera.dev>
[Dominique: remove confusing variable reset to 0]
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
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Using device name as format string of seq_printf() is proned to
"Format string attack", opens possibility for exploitation.
Seq_puts() is safer and more efficient.
Signed-off-by: David Wang <00107082@163.com>
Reviewed-by: Kees Cook <kees@kernel.org>
Link: https://lore.kernel.org/r/20241120053055.225195-1-00107082@163.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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ida_alloc() and ida_free() should be preferred to the deprecated
ida_simple_get() and ida_simple_remove().
This is less verbose.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/2ce706d3242b9d3e4b9c20c0a7d9a8afcf8897ec.1729423829.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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As all the rotation are now supported by VKMS, this simplification does
not make sense anymore, so remove it.
Acked-by: Maíra Canal <mairacanal@riseup.net>
Reviewed-by: José Expósito <jose.exposito89@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241118-yuv-v14-9-2dbc2f1e222c@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
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Re-introduce a line-by-line composition algorithm for each pixel format.
This allows more performance by not requiring an indirection per pixel
read. This patch is focused on readability of the code.
Line-by-line composition was introduced by [1] but rewritten back to
pixel-by-pixel algorithm in [2]. At this time, nobody noticed the impact
on performance, and it was merged.
This patch is almost a revert of [2], but in addition efforts have been
made to increase readability and maintainability of the rotation handling.
The blend function is now divided in two parts:
- Transformation of coordinates from the output referential to the source
referential
- Line conversion and blending
Most of the complexity of the rotation management is avoided by using
drm_rect_* helpers. The remaining complexity is around the clipping, to
avoid reading/writing outside source/destination buffers.
The pixel conversion is now done line-by-line, so the read_pixel_t was
replaced with read_pixel_line_t callback. This way the indirection is only
required once per line and per plane, instead of once per pixel and per
plane.
The read_line_t callbacks are very similar for most pixel format, but it
is required to avoid performance impact. Some helpers for color
conversion were introduced to avoid code repetition:
- *_to_argb_u16: perform colors conversion. They should be inlined by the
compiler, and they are used to avoid repetition between multiple variants
of the same format (argb/xrgb and maybe in the future for formats like
bgr formats).
This new algorithm was tested with:
- kms_plane (for color conversions)
- kms_rotation_crc (for rotations of planes)
- kms_cursor_crc (for translations of planes)
- kms_rotation (for all rotations and formats combinations) [3]
The performance gain was mesured with kms_fb_stress [4] with some
modification to fix the writeback format.
The performance improvement is around 5 to 10%.
[1]: commit 8ba1648567e2 ("drm: vkms: Refactor the plane composer to accept
new formats")
https://lore.kernel.org/all/20220905190811.25024-7-igormtorrente@gmail.com/
[2]: commit 322d716a3e8a ("drm/vkms: isolate pixel conversion
functionality")
https://lore.kernel.org/all/20230418130525.128733-2-mcanal@igalia.com/
[3]: https://lore.kernel.org/igt-dev/20240313-new_rotation-v2-0-6230fd5cae59@bootlin.com/
[4]: https://lore.kernel.org/all/20240422-kms_fb_stress-dev-v5-0-0c577163dc88@riseup.net/
Reviewed-by: José Expósito <jose.exposito89@gmail.com>
Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241118-yuv-v14-8-2dbc2f1e222c@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
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The pixel_read_direction enum is useful to describe the reading direction
in a plane. It avoids using the rotation property of DRM, which not
practical to know the direction of reading.
This patch also introduce two helpers, one to compute the
pixel_read_direction from the DRM rotation property, and one to compute
the step, in byte, between two successive pixel in a specific direction.
Acked-by: Maíra Canal <mairacanal@riseup.net>
Reviewed-by: José Expósito <jose.exposito89@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241118-yuv-v14-7-2dbc2f1e222c@bootlin.com
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
|
