Brian Masney [Thu, 10 Jul 2025 21:10:35 +0000 (17:10 -0400)]
clk: imx: busy: convert from round_rate() to determine_rate()
The round_rate() clk ops is deprecated, so migrate this driver from
round_rate() to determine_rate() using the Coccinelle semantic patch
on the cover letter of this series.
The change to call busy->div_ops->determine_rate() instead of
busy->div_ops->round_rate() was done by hand.
Brian Masney [Thu, 10 Jul 2025 21:10:34 +0000 (17:10 -0400)]
clk: imx: composite-93: remove round_rate() in favor of determine_rate()
This driver implements both the determine_rate() and round_rate() clk
ops, and the round_rate() clk ops is deprecated. When both are defined,
clk_core_determine_round_nolock() from the clk core will only use the
determine_rate() clk ops, so let's remove the round_rate() clk ops since
it's unused.
Brian Masney [Thu, 10 Jul 2025 21:10:33 +0000 (17:10 -0400)]
clk: imx: composite-8m: remove round_rate() in favor of determine_rate()
This driver implements both the determine_rate() and round_rate() clk
ops, and the round_rate() clk ops is deprecated. When both are defined,
clk_core_determine_round_nolock() from the clk core will only use the
determine_rate() clk ops, so let's remove the round_rate() clk ops since
it's unused.
Paul E. McKenney [Wed, 23 Jul 2025 23:13:45 +0000 (16:13 -0700)]
selftests/pidfd: Fix duplicate-symbol warnings for SCHED_ CPP symbols
The pidfd selftests run in userspace and include both userspace and kernel
header files. On some distros (for example, CentOS), this results in
duplicate-symbol warnings in allmodconfig builds, while on other distros
(for example, Ubuntu) it does not.
Therefore, use #undef to get rid of the userspace definitions in favor
of the kernel definitions.
Other ways of handling this include splitting up the selftest code so
that the userspace definitions go into one translation unit and the
kernel definitions into another (which might or might not be feasible)
or to adjust compiler command-line options to suppress the warnings
(which might or might not be desirable).
[ paulmck: Apply Shuah Khan feedback. ]
Link: https://lore.kernel.org/r/cc7e4fe7-299f-4bf3-af46-df6551d61997@paulmck-laptop Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Reviewed-by: Shuah Khan <skhan@linuxfoundation.org> Cc: Christian Brauner <brauner@kernel.org> Cc: <linux-kselftest@vger.kernel.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Stephen Boyd [Thu, 24 Jul 2025 22:03:54 +0000 (15:03 -0700)]
Merge tag 'thead-clk-for-v6.17-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/fustini/linux into clk-thead
Pull one more T-HEAD clk driver update from Drew Fustini:
Yao Zi has fixed an issue where the c910 mux clk could end up as an
orphan in CCF when the bootloader reparents it to the c910-i0 mux clk.
The solution is to refactor the handling of mux clocks by embedding a
clk_mux structure directly in ccu_mux. This allows the mux clocks to be
registered with devm_clk_hw_register() without allocating any new clk_hw
pointer which solves the orphan issue.
This change has been tested in linux-next. The LPi4a still boots okay
without clk_ignore_unused and peripherals like serial, emmc and ethernet
are functional. The file /sys/kernel/debug/clk/c910/clk_possible_parents
now correctly outputs: "c910-i0 cpu-pll1"
* tag 'thead-clk-for-v6.17-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/fustini/linux:
clk: thead: th1520-ap: Describe mux clocks with clk_mux
Steven Rostedt [Mon, 21 Jul 2025 17:42:12 +0000 (13:42 -0400)]
selftests/tracing: Fix false failure of subsystem event test
The subsystem event test enables all "sched" events and makes sure there's
at least 3 different events in the output. It used to cat the entire trace
file to | wc -l, but on slow machines, that could last a very long time.
To solve that, it was changed to just read the first 100 lines of the
trace file. This can cause false failures as some events repeat so often,
that the 100 lines that are examined could possibly be of only one event.
Instead, create an awk script that looks for 3 different events and will
exit out after it finds them. This will find the 3 events the test looks
for (eventually if it works), and still exit out after the test is
satisfied and not cause slower machines to run forever.
Frank Li [Thu, 10 Jul 2025 19:13:53 +0000 (15:13 -0400)]
misc: pci_endpoint_test: Add doorbell test case
Add doorbell support with the help of three new registers:
PCIE_ENDPOINT_TEST_DB_BAR, PCIE_ENDPOINT_TEST_DB_ADDR, and
PCIE_ENDPOINT_TEST_DB_DATA.
The testcase works by triggering the doorbell in Endpoint by writing the
value from PCI_ENDPOINT_TEST_DB_DATA register to the address provided by
PCI_ENDPOINT_TEST_DB_OFFSET register of the BAR indicated by the
PCIE_ENDPOINT_TEST_DB_BAR register and waiting for the completion status
from the Endpoint.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
[mani: removed one spurious change and reworded the commit message] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Niklas Cassel <cassel@kernel.org> Link: https://patch.msgid.link/20250710-ep-msi-v21-7-57683fc7fb25@nxp.com
Frank Li [Thu, 10 Jul 2025 19:13:52 +0000 (15:13 -0400)]
PCI: endpoint: pci-epf-test: Add doorbell test support
Add doorbell support by allocating a dedicated BAR using the
pci_epf_alloc_doorbell() API and mapping the Endpoint MSI controller
message data address to it. The data to be written in the message address
is stored in the 'pci_epf_test_reg::doorbell_data' register. Finally, the
RC can trigger doorbell in the Endpoint by writing the content of
'doorbell_data' register to the offset specified in 'doorbell_offset' of
the 'doorbell_bar' BAR.
Triggering of the doorbell is detected by pci_epf_test_doorbell_handler(),
which is bound to the doorbell IRQ. On successful completion,
STATUS_DOORBELL_SUCCESS status is set in the above mentioned handler.
To avoid breaking compatibility between host and endpoint, add two new
commands: COMMAND_ENABLE_DOORBELL and COMMAND_DISABLE_DOORBELL.
The doorbell is allocated when COMMAND_ENABLE_DOORBELL command is called
and destroyed when COMMAND_DISABLE_DOORBELL is called.
This doorbell feature only works when both RC and EP drivers support it.
If one of them doesn't support the feature, the testcase will fail.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
[mani: code cleanups and reworded commit message] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Niklas Cassel <cassel@kernel.org> Link: https://patch.msgid.link/20250710-ep-msi-v21-6-57683fc7fb25@nxp.com
Frank Li [Thu, 10 Jul 2025 19:13:51 +0000 (15:13 -0400)]
PCI: endpoint: Add pci_epf_align_inbound_addr() helper for inbound address alignment
Add pci_epf_align_inbound_addr() to align the inbound addresses according
to PCI BAR alignment requirements. The aligned base address and offset are
returned via 'base' and 'off' parameters.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
[mani: reworded kernel-doc and commit message] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Niklas Cassel <cassel@kernel.org> Link: https://patch.msgid.link/20250710-ep-msi-v21-5-57683fc7fb25@nxp.com
Frank Li [Thu, 10 Jul 2025 19:13:50 +0000 (15:13 -0400)]
PCI: endpoint: pci-ep-msi: Add checks for MSI parent and mutability
Some MSI controllers can change address/data pair during the execution of
irq_chip::irq_set_affinity() callback. Since the current PCI Endpoint
framework cannot support mutable MSI controllers, call
irq_domain_is_msi_immutable() API to check if the controller is immutable
or not.
Also ensure that the MSI domain is a parent MSI domain so that it can
allocate address/data pairs.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
[mani: reworded error message and commit message] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Niklas Cassel <cassel@kernel.org> Link: https://patch.msgid.link/20250710-ep-msi-v21-4-57683fc7fb25@nxp.com
pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(),
pm_runtime_autosuspend() and pm_request_autosuspend() now include a call
to pm_runtime_mark_last_busy(). Remove the now-reduntant explicit call to
pm_runtime_mark_last_busy().
pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(),
pm_runtime_autosuspend() and pm_request_autosuspend() now include a call
to pm_runtime_mark_last_busy(). Remove the now-reduntant explicit call to
pm_runtime_mark_last_busy().
Brian Masney [Thu, 3 Jul 2025 23:22:25 +0000 (19:22 -0400)]
clk: bcm: bcm2835: convert from round_rate() to determine_rate()
The round_rate() clk ops is deprecated, so migrate this driver from
round_rate() to determine_rate() using the Coccinelle semantic patch
on the cover letter of this series.
Frank Li [Fri, 6 Jun 2025 16:24:09 +0000 (12:24 -0400)]
dt-bindings: clock: convert lpc1850-cgu.txt to yaml format
Convert lpc1850-cgu.txt to yaml format.
Additional changes:
- remove extra clock source nodes in example.
- remove clock consumer in example.
- remove clock-output-names and clock-clock-indices from required list to
match existed dts.
Florian Fainelli [Wed, 25 Jun 2025 23:10:38 +0000 (16:10 -0700)]
MAINTAINERS: Include clk.py under COMMON CLK FRAMEWORK entry
Include the GDB scripts file under scripts/gdb/linux/clk.py under the
COMMON CLK subsystem since it parses internal data structures that
depend upon that subsystem.
Nam Cao [Thu, 26 Jun 2025 14:48:06 +0000 (16:48 +0200)]
PCI: vmd: Switch to msi_create_parent_irq_domain()
Switch to msi_create_parent_irq_domain() from pci_msi_create_irq_domain()
which was using legacy MSI domain setup.
Signed-off-by: Nam Cao <namcao@linutronix.de>
[mani: reworded commit message] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
[bhelgaas: rebase on dev_fwnode() conversion, wrap long lines, squash fix
from https://lore.kernel.org/r/20250716201216.TsY3Kn45@linutronix.de] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: https://patch.msgid.link/de3f1d737831b251e9cd2cbf9e4c732a5bbba13a.1750858083.git.namcao@linutronix.de
Nam Cao [Thu, 26 Jun 2025 14:48:03 +0000 (16:48 +0200)]
PCI: plda: Switch to msi_create_parent_irq_domain()
Switch to msi_create_parent_irq_domain() from pci_msi_create_irq_domain()
which was using legacy MSI domain setup.
Signed-off-by: Nam Cao <namcao@linutronix.de>
[mani: reworded commit message] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
[bhelgaas: rebase on dev_fwnode() conversion, drop fwnode local var] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: https://patch.msgid.link/1279fe6500a1d8135d8f5feb2f055df008746c88.1750858083.git.namcao@linutronix.de
Nam Cao [Thu, 26 Jun 2025 14:48:02 +0000 (16:48 +0200)]
PCI: xilinx: Switch to msi_create_parent_irq_domain()
Switch to msi_create_parent_irq_domain() from pci_msi_create_irq_domain()
which was using legacy MSI domain setup.
Signed-off-by: Nam Cao <namcao@linutronix.de>
[mani: reworded commit message] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
[bhelgaas: rebase on dev_fwnode() conversion, drop fwnode local var] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: https://patch.msgid.link/b1353c797ce53714c22823de3bd2ae3d09fcd84f.1750858083.git.namcao@linutronix.de
Nam Cao [Thu, 26 Jun 2025 14:48:01 +0000 (16:48 +0200)]
PCI: xilinx-nwl: Switch to msi_create_parent_irq_domain()
Switch to msi_create_parent_irq_domain() from pci_msi_create_irq_domain()
which was using legacy MSI domain setup.
Signed-off-by: Nam Cao <namcao@linutronix.de>
[mani: reworded commit message] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
[bhelgaas: rebase on dev_fwnode() conversion, drop fwnode local var] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: https://patch.msgid.link/5ac6e216bf2eaa438c8854baf2ff3e5cf0b2284f.1750858083.git.namcao@linutronix.de
Nam Cao [Thu, 26 Jun 2025 14:47:59 +0000 (16:47 +0200)]
PCI: rcar-host: Switch to msi_create_parent_irq_domain()
Switch to msi_create_parent_irq_domain() from pci_msi_create_irq_domain()
which was using legacy MSI domain setup.
Signed-off-by: Nam Cao <namcao@linutronix.de>
[mani: reworded commit message] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
[bhelgaas: rebase on dev_fwnode() conversion, drop fwnode local var] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: https://patch.msgid.link/ab4005db0a829549be1f348f6c27be50a2118b5e.1750858083.git.namcao@linutronix.de
Nam Cao [Thu, 26 Jun 2025 14:47:58 +0000 (16:47 +0200)]
PCI: mediatek: Switch to msi_create_parent_irq_domain()
Switch to msi_create_parent_irq_domain() from pci_msi_create_irq_domain()
which was using legacy MSI domain setup.
Signed-off-by: Nam Cao <namcao@linutronix.de>
[mani: reworded commit message] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
[bhelgaas: rebase on dev_fwnode() conversion, drop fwnode local var] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: https://patch.msgid.link/76f6e6ce6021607cd0fdfd79fef7d2eb69d9f361.1750858083.git.namcao@linutronix.de
Nam Cao [Thu, 26 Jun 2025 14:47:55 +0000 (16:47 +0200)]
PCI: brcmstb: Switch to msi_create_parent_irq_domain()
Switch to msi_create_parent_irq_domain() from pci_msi_create_irq_domain()
which was using legacy MSI domain setup.
Signed-off-by: Nam Cao <namcao@linutronix.de>
[mani: reworded commit message] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
[bhelgaas: rebase on dev_fwnode() conversion, drop fwnode local var] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com> Link: https://patch.msgid.link/fa72703e06c2ee2c7554082c7152913eb0dd294f.1750858083.git.namcao@linutronix.de
Nam Cao [Thu, 26 Jun 2025 14:47:52 +0000 (16:47 +0200)]
PCI: mobiveil: Switch to msi_create_parent_irq_domain()
Switch to msi_create_parent_irq_domain() from pci_msi_create_irq_domain()
which was using legacy MSI domain setup.
Signed-off-by: Nam Cao <namcao@linutronix.de>
[mani: reworded commit message] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
[bhelgaas: rebase on dev_fwnode() conversion, drop fwnode local var] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: https://patch.msgid.link/af46c15c47a7716f7e0c50d0f7391509c95b49c2.1750858083.git.namcao@linutronix.de
Mark Brown [Thu, 24 Jul 2025 21:09:30 +0000 (22:09 +0100)]
More minor SDCA changes
Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>:
A small chain with some patches that seem to have got lost in the
process. One small additional bug fix for the regmap callbacks, and one
small feature addition for the control parsing.
Charles Keepax (2):
ASoC: SDCA: Fix some holes in the regmap readable/writeable helpers
ASoC: SDCA: Add support for -cn- value properties
PCI: controller: Use dev_fwnode() instead of of_fwnode_handle()
All irq_domain functions now accept fwnode instead of of_node. But many
PCI controllers still extract dev to of_node and then of_node to fwnode.
Instead, clean this up and simply use the dev_fwnode() helper to extract
fwnode directly from dev. Internally, it still does dev => of_node =>
fwnode steps, but it's now hidden from the users.
In the case of altera, this also removes an unused 'node' variable that is
only used when CONFIG_OF is enabled:
drivers/pci/controller/pcie-altera.c: In function 'altera_pcie_init_irq_domain':
drivers/pci/controller/pcie-altera.c:855:29: error: unused variable 'node' [-Werror=unused-variable]
855 | struct device_node *node = dev->of_node;
Ian Rogers [Thu, 24 Jul 2025 16:32:41 +0000 (09:32 -0700)]
perf build-id: Reduce size of "size" variable
Later clean up of the dso_id to include a build_id will suffer from
alignment and size issues. The size can only hold up to a value of
BUILD_ID_SIZE (20) and the mmap2 event uses a byte for the value.
Thresholds can increase the number of counters a metric needs. The NMI
watchdog can take away a counter (hopefully the buddy watchdog will
become the default and this will no longer be true). Add a new
constraint for the case that a metric and its thresholds would fit in
counters but only if the NMI watchdog isn't enabled. Either the
threshold or the NMI watchdog should be disabled to make the metric
fit. Wire this up into the metric__group_events logic.
Ian Rogers [Sat, 19 Jul 2025 03:05:16 +0000 (20:05 -0700)]
perf parse-events: Fix missing slots for Intel topdown metric events
Topdown metric events require grouping with a slots event. In perf
metrics this is currently achieved by metrics adding an unnecessary
"0 * tma_info_thread_slots". New TMA metrics trigger optimizations of
the metric expression that removes the event and breaks the metric due
to the missing but required event. Add a pass immediately before
sorting and fixing parsed events, that insert a slots event if one is
missing. Update test expectations to match this.
Ian Rogers [Sat, 19 Jul 2025 03:05:15 +0000 (20:05 -0700)]
perf topdown: Use attribute to see an event is a topdown metic or slots
The string comparisons were overly broad and could fire for the
incorrect PMU and events. Switch to using the config in the attribute
then add a perf test to confirm the attribute config values match
those of parsed events of that name and don't match others. This
exposed matches for slots events that shouldn't have matched as the
slots fixed counter event, such as topdown.slots_p.
Ian Rogers [Sat, 19 Jul 2025 03:05:14 +0000 (20:05 -0700)]
perf parse-events: Support user CPUs mixed with threads/processes
Counting events system-wide with a specified CPU prior to this change
worked:
```
$ perf stat -e 'msr/tsc/,msr/tsc,cpu=cpu_core/,msr/tsc,cpu=cpu_atom/' -a sleep 1
However, when counting with process the counts became system wide:
```
$ perf stat -e 'msr/tsc/,msr/tsc,cpu=cpu_core/,msr/tsc,cpu=cpu_atom/' perf test -F 10
10.1: Basic parsing test : Ok
10.2: Parsing without PMU name : Ok
10.3: Parsing with PMU name : Ok
Make the handling of CPU maps with event parsing clearer. When an
event is parsed creating an evsel the cpus should be either the PMU's
cpumask or user specified CPUs.
Update perf_evlist__propagate_maps so that it doesn't clobber the user
specified CPUs. Try to make the behavior clearer, firstly fix up
missing cpumasks. Next, perform sanity checks and adjustments from the
global evlist CPU requests and for the PMU including simplifying to
the "any CPU"(-1) value. Finally remove the event if the cpumask is
empty.
So that events are opened with a CPU and a thread change stat's
create_perf_stat_counter to give both.
With the change things are fixed:
```
$ perf stat --no-scale -e 'msr/tsc/,msr/tsc,cpu=cpu_core/,msr/tsc,cpu=cpu_atom/' perf test -F 10
10.1: Basic parsing test : Ok
10.2: Parsing without PMU name : Ok
10.3: Parsing with PMU name : Ok
However, note the "--no-scale" option is used. This is necessary as
the running time for the event on the counter isn't the same as the
enabled time because the thread doesn't necessarily run on the CPUs
specified for the counter. All counter values are scaled with:
scaled_value = value * time_enabled / time_running
and so without --no-scale the scaled_value becomes very large. This
problem already exists on hybrid systems for the same reason. Here are
2 runs of the same code with an instructions event that counts the
same on both types of core, there is no real multiplexing happening on
the event:
```
$ perf stat -e instructions perf test -F 10
...
Performance counter stats for 'perf test -F 10':
87,896,447 cpu_atom/instructions/ (14.37%)
98,171,964 cpu_core/instructions/ (85.63%)
...
$ perf stat --no-scale -e instructions perf test -F 10
...
Performance counter stats for 'perf test -F 10':
13,069,890 cpu_atom/instructions/ (19.32%)
83,460,274 cpu_core/instructions/ (80.68%)
...
```
The scaling has inflated per-PMU instruction counts and the overall
count by 2x.
To fix this the kernel needs changing when a task+CPU event (or just
task event on hybrid) is scheduled out. A fix could be that the state
isn't inactive but off for such events, so that time_enabled counts
don't accumulate on them.
Ian Rogers [Sat, 19 Jul 2025 03:05:13 +0000 (20:05 -0700)]
perf evsel: Add evsel__open_per_cpu_and_thread
Add evsel__open_per_cpu_and_thread that combines the operation of
evsel__open_per_cpu and evsel__open_per_thread so that an event
without the "any" cpumask can be opened with its cpumask and with
threads it specifies. Change the implementation of evsel__open_per_cpu
and evsel__open_per_thread to use evsel__open_per_cpu_and_thread to
make the implementation of those functions clearer.
Ian Rogers [Sat, 19 Jul 2025 03:05:12 +0000 (20:05 -0700)]
perf parse-events: Minor __add_event refactoring
Rename cpu_list to user_cpus. If a PMU isn't given, find it early from
the perf_event_attr. Make the pmu_cpus more explicitly a copy from the
PMU (except when user_cpus are given). Derive the cpus from pmu_cpus
and user_cpus as appropriate. Handle strdup errors on name and
metric_id.
Ian Rogers [Sat, 19 Jul 2025 03:05:07 +0000 (20:05 -0700)]
perf tool_pmu: Allow num_cpus(_online) to be specific to a cpumask
For hybrid metrics it is useful to know the number of p-core or e-core
CPUs. If a cpumask is specified for the num_cpus or num_cpus_online
tool events, compute the value relative to the given mask rather than
for the full system.
```
$ sudo /tmp/perf/perf stat -e 'tool/num_cpus/,tool/num_cpus,cpu=cpu_core/,
tool/num_cpus,cpu=cpu_atom/,tool/num_cpus_online/,tool/num_cpus_online,
cpu=cpu_core/,tool/num_cpus_online,cpu=cpu_atom/' true
Ian Rogers [Sat, 19 Jul 2025 03:05:06 +0000 (20:05 -0700)]
perf parse-events: Allow the cpu term to be a PMU or CPU range
On hybrid systems, events like msr/tsc/ will aggregate counts across
all CPUs. Often metrics only want a value like msr/tsc/ for the cores
on which the metric is being computed. Listing each CPU with terms
cpu=0,cpu=1.. is laborious and would need to be encoded for all
variations of a CPU model.
Allow the cpumask from a PMU to be an argument to the cpu term. For
example in the following the cpumask of the cstate_pkg PMU selects the
CPUs to count msr/tsc/ counter upon:
```
$ cat /sys/bus/event_source/devices/cstate_pkg/cpumask
0
$ perf stat -A -e 'msr/tsc,cpu=cstate_pkg/' -a sleep 0.1
As the cpu term is now also allowed to be a string, allow it to encode
a range of CPUs (a list can't be supported as ',' is already a special
token).
The "event qualifiers" section of the `perf list` man page is updated
to detail the additional behavior. The man page formatting is tidied
up in this section, as it was incorrectly appearing within the
"parameterized events" section.
Ian Rogers [Sat, 19 Jul 2025 03:05:05 +0000 (20:05 -0700)]
perf stat: Don't size aggregation ids from user_requested_cpus
As evsels may have additional CPU terms, the user_requested_cpus may
not reflect all the CPUs requested. Use evlist->all_cpus to size the
array as that reflects all the CPUs potentially needed by the evlist.
Ian Rogers [Sat, 19 Jul 2025 03:05:04 +0000 (20:05 -0700)]
perf stat: Avoid buffer overflow to the aggregation map
CPUs may be created and passed to perf_stat__get_aggr (via
config->aggr_get_id), such as in the stat display
should_skip_zero_counter. There may be no such aggr_id, for example,
if running with a thread. Add a missing bound check and just create
IDs for these cases.
Ian Rogers [Sat, 19 Jul 2025 03:05:03 +0000 (20:05 -0700)]
perf parse-events: Warn if a cpu term is unsupported by a CPU
Factor requested CPU warning out of evlist and into evsel. At the end
of adding an event, perform the warning check. To avoid repeatedly
testing if the cpu_list is empty, add a local variable.
```
$ perf stat -e cpu_atom/cycles,cpu=1/ -a true
WARNING: A requested CPU in '1' is not supported by PMU 'cpu_atom' (CPUs 16-27) for event 'cpu_atom/cycles/'
Ian Rogers [Tue, 22 Jul 2025 01:34:49 +0000 (18:34 -0700)]
perf pfm: Don't force loading of all PMUs
Force loading all PMUs adds significant cost because DRM and other
PMUs are loaded, it should also not be required if the pmus__
functions are used.
Tested by run perf test, in particular the pfm related tests. Also
`perf list` is identical before and after.
Before:
$ time ./perf test pfm
54: Test libpfm4 support :
54.1: test of individual --pfm-events : Ok
54.2: test groups of --pfm-events : Ok
103: perf all libpfm4 events test : Ok
real 0m8.933s
user 0m1.824s
sys 0m7.122s
After:
$ time ./perf test pfm
54: Test libpfm4 support :
54.1: test of individual --pfm-events : Ok
54.2: test groups of --pfm-events : Ok
103: perf all libpfm4 events test : Ok
Mark Brown [Thu, 24 Jul 2025 20:24:17 +0000 (21:24 +0100)]
support for amlogic the new SPI IP
Merge series from Xianwei Zhao <xianwei.zhao@amlogic.com>:
Introduced support for the new SPI IP (SPISG). The SPISG is
a communication-oriented SPI controller from Amlogic,supporting
three operation modes: PIO, block DMA, and scatter-gather DMA.
Add the drivers and device tree bindings corresponding to the SPISG.
ubi_flush() was added in 2012 as part of
commit 62f384552b67 ("UBI: modify ubi_wl_flush function to clear work queue
for a lnum")
but has remained unused.
(It's friend ubi_wl_flush() is still used)
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Richard Weinberger <richard@nod.at>
f2fs: don't break allocation when crossing contiguous sections
Commit 0638a3197c19 ("f2fs: avoid unused block when dio write in LFS
mode") has fixed unused block issue for dio write in lfs mode.
However, f2fs_map_blocks() may break and return smaller extent when
last allocated block locates in the end of section, even allocator
can allocate contiguous blocks across sections.
Actually, for the case that allocator returns a block address which is
not contiguous w/ current extent, we can record the block address in
iomap->private, in the next round, skip reallocating for the last
allocated block, then we can fix unused block issue, meanwhile, also,
we can allocates contiguous physical blocks as much as possible for dio
write in lfs mode.
Jan Prusakowski [Thu, 24 Jul 2025 15:31:15 +0000 (17:31 +0200)]
f2fs: vm_unmap_ram() may be called from an invalid context
When testing F2FS with xfstests using UFS backed virtual disks the
kernel complains sometimes that f2fs_release_decomp_mem() calls
vm_unmap_ram() from an invalid context. Example trace from
f2fs/007 test:
This patch modifies in_task() check inside f2fs_read_end_io() to also
check if interrupts are disabled. This ensures that pages are unmapped
asynchronously in an interrupt handler.
Fixes: bff139b49d9f ("f2fs: handle decompress only post processing in softirq") Signed-off-by: Jan Prusakowski <jprusakowski@google.com> Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Lucas De Marchi [Tue, 22 Jul 2025 19:52:08 +0000 (12:52 -0700)]
drm/xe: Fix build without debugfs
When CONFIG_DEBUG_FS is off, drivers/gpu/drm/xe/xe_gt_debugfs.o
is not built and build fails on some setups with:
ld: drivers/gpu/drm/xe/xe_gt.o: in function `xe_fault_inject_gt_reset':
drivers/gpu/drm/xe/xe_gt.h:27:(.text+0x1659): undefined reference to `gt_reset_failure'
ld: drivers/gpu/drm/xe/xe_gt.h:27:(.text+0x1c16): undefined reference to `gt_reset_failure'
collect2: error: ld returned 1 exit status
Do not use the gt_reset_failure attribute if debugfs is not enabled.
Fixes: 8f3013e0b222 ("drm/xe: Introduce fault injection for gt reset") Cc: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Link: https://lore.kernel.org/r/20250722-xe-fix-build-fault-v1-1-157384d50987@intel.com Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
(cherry picked from commit 4d3bbe9dd28c0a4ca119e4b8823c5f5e9cb3ff90) Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Stephen Boyd [Thu, 24 Jul 2025 18:13:15 +0000 (11:13 -0700)]
Merge tag 'clk-imx-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/abelvesa/linux into clk-imx
Pull i.MX clk driver updates from Abel Vesa:
- Document bindings for i.MX94 LVDS/Display CSR
- Fix synchronous abort in i.MX95 BLK CTL driver
- Rename LVDS and displaymix CSR BLK needed for supporting i.MX943
- Add i.MX94 LVDS/Display CSR clock to the i.MX95 BLK CTL
- Update MAINTAINERS entry to include both nxp,imx* and fsl,imx*
* tag 'clk-imx-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/abelvesa/linux:
MAINTAINERS: Update i.MX Clock Entry
clk: imx95-blk-ctl: Add clock for i.MX94 LVDS/Display CSR
clk: imx95-blk-ctl: Rename lvds and displaymix csr blk
clk: imx95-blk-ctl: Fix synchronous abort
dt-bindings: clock: Add support for i.MX94 LVDS/DISPLAY CSR
clk: imx: Fix an out-of-bounds access in dispmix_csr_clk_dev_data
Richard Zhu [Wed, 9 Jul 2025 03:37:22 +0000 (11:37 +0800)]
PCI: imx6: Delay link start until configfs 'start' written
According to Documentation/PCI/endpoint/pci-endpoint-cfs.rst, the Endpoint
controller (EPC) should only start the link when userspace writes '1' to
the '/sys/kernel/config/pci_ep/controllers/<EPC>/start' attribute, which
ultimately results in calling imx_pcie_start_link() via
pci_epc_start_store().
To align with the documented behavior, do not start the link automatically
when adding the EP controller.
Fixes: 75c2f26da03f ("PCI: imx6: Add i.MX PCIe EP mode support") Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
[mani: reworded commit subject and description] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
[bhelgaas: commit log] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20250709033722.2924372-3-hongxing.zhu@nxp.com
Richard Zhu [Wed, 9 Jul 2025 03:37:21 +0000 (11:37 +0800)]
PCI: imx6: Remove apps_reset toggling from imx_pcie_{assert/deassert}_core_reset
apps_reset corresponds to LTSSM_EN in i.MX7, i.MX8MQ, i.MX8MM and i.MX8MP
platforms. Since assertion/de-assertion of apps_reset is done in
imx_pcie_ltssm_enable() and imx_pcie_ltssm_disable(), remove it from
imx_pcie_assert_core_reset() and imx_pcie_deassert_core_reset().
This also fixes a failure in enumerating the PI7C9X2G608GP (hotplug) chip
reliably on i.MX8MM, as reported by Tim.
It should be noted that only i.MX7D, i.MX8MQ, i.MX8MM, and i.MX8MP
platforms have the apps_reset logic, so this change doesn't have any effect
on other platforms.
Fixes: ef61c7d8d032 ("PCI: imx6: Deassert apps_reset in imx_pcie_deassert_core_reset()") Reported-by: Tim Harvey <tharvey@gateworks.com> Closes: https://lore.kernel.org/all/CAJ+vNU3ohR2YKTwC4xoYrc1z-neDoH2TTZcMHDy+poj9=jSy+w@mail.gmail.com/ Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
[mani: reworded commit subject and description] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
[bhelgaas: commit log] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Tim Harvey <tharvey@gateworks.com> # imx8mp-venice-gw74xx (i.MX8MP + hotplug capable switch) Reviewed-by: Frank Li <Frank.Li@nxp.com> Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20250709033722.2924372-2-hongxing.zhu@nxp.com
There is no need to store the err string in hw->err_str. Simplify it and
use common helper. hw->err_str is still used for other purpouse.
It should be marked that previously for unknown error the numeric value
was passed as a string. Now the "LIBIE_AQ_RC_UNKNOWN" is used for such
cases.
Add libie_aminq module in i40e Kconfig.
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
libie: add adminq helper for converting err to str
Add a new module for common handling of Admin Queue related logic.
Start by a helper for error to string conversion. This lives inside
libie/, but is a separate module what follows our logic of splitting
into topical modules, to avoid pulling in not needed stuff, and have
better organization in general.
Olek suggested how to better solve the error to string conversion.
It will be used in follow-up patches in ice, i40e and iavf.
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Suggested-by: Alexander Lobakin <aleksander.lobakin@intel.com> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Use libie_aq_desc instead of i40e_aq_desc. Do needed changes to allow
clean build.
Get version descriptor is a little less detailed on i40e. To not mess up
with shifting or union inside libie desc use get version descriptor from
i40e.
Move additional caps for i40e to libie.
Fix RCT in declaration that is using libie_aq_desc;
Use libie_aq_raw() wherever it can be used.
The libie aq error is extended, cover it in ice driver just to clean
build. In next patches the libie code for that will be used in each
of intel driver.
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Use libie_aq_desc instead of ixgbe_aci_desc. Do needed changes to allow
clean build.
Move additional caps used in ixgbe to libie.
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
ice, libie: move generic adminq descriptors to lib
The descriptor structure is the same in ice, ixgbe and i40e. Move it to
common libie header to use it across different driver.
Leave device specific adminq commands in separate folders. This lead to
a change that need to be done in filling/getting descriptor:
- previous: struct specific_desc *cmd;
cmd = &desc.params.specific_desc;
- now: struct specific_desc *cmd;
cmd = libie_aq_raw(&desc);
Do this changes across the driver to allow clean build. The casting only
have to be done in case of specific descriptors, for generic one union
can still be used.
Changes beside code moving:
- change ICE_ prefix to LIBIE_ prefix (ice_ and libie_ too)
- remove shift variables not otherwise needed (in libie_aq_flags)
- fill/get descriptor data based on desc.params.raw whenever the
descriptor isn't defined in libie
- move defines from the libie_aq_sth structure outside
- add libie_aq_raw helper and use it instead of explicit casting
Reviewed by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Merge tag 'sound-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Some last-minute fixes. All changes are device-specific small fixes or
quirks, safe to apply"
* tag 'sound-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: mediatek: common: fix device and OF node leak
ALSA: hda/realtek: Fix mute LED mask on HP OMEN 16 laptop
ALSA: usb-audio: qcom: Adjust mutex unlock order
ASoC: SDCA: correct the calculation of the maximum init table size
ASoC: rt5650: Eliminate the high frequency glitch
ASoC: SOF: Intel: PTL: Add the sdw_process_wakeen op
ALSA: hda/realtek - Add mute LED support for HP Pavilion 15-eg0xxx
ALSA: hda/realtek - Add mute LED support for HP Victus 15-fa0xxx
ASoC: mediatek: mt8365-dai-i2s: pass correct size to mt8365_dai_set_priv
The function ksmbd_vfs_kern_path_locked() seems to serve two functions
and as a result has an odd interface.
On success it returns with the parent directory locked and with write
access on that filesystem requested, but it may have crossed over a
mount point to return the path, which makes the lock and the write
access irrelevant.
This patches separates the functionality into two functions:
- ksmbd_vfs_kern_path() does not lock the parent, does not request
write access, but does cross mount points
- ksmbd_vfs_kern_path_locked() does not cross mount points but
does lock the parent and request write access.
The parent_path parameter is no longer needed. For the _locked case
the final path is sufficient to drop write access and to unlock the
parent (using path->dentry->d_parent which is safe while the lock is
held).
There were 3 caller of ksmbd_vfs_kern_path_locked().
- smb2_create_link() needs to remove the target if it existed and
needs the lock and the write-access, so it continues to use
ksmbd_vfs_kern_path_locked(). It would not make sense to
cross mount points in this case.
- smb2_open() is the only user that needs to cross mount points
and it has no need for the lock or write access, so it now uses
ksmbd_vfs_kern_path()
- smb2_creat() does not need to cross mountpoints as it is accessing
a file that it has just created on *this* filesystem. But also it
does not need the lock or write access because by the time
ksmbd_vfs_kern_path_locked() was called it has already created the
file. So it could use either interface. It is simplest to use
ksmbd_vfs_kern_path().
ksmbd_vfs_kern_path_unlock() is still needed after
ksmbd_vfs_kern_path_locked() but it doesn't require the parent_path any
more. After a successful call to ksmbd_vfs_kern_path(), only path_put()
is needed to release the path.
Signed-off-by: NeilBrown <neil@brown.name> Acked-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Two important arm64 fixes ahead of the 6.16 release.
The first fixes a regression introduced during the merge window where
the KVM UUID (which is used to advertise KVM-specific hypercalls for
things like time synchronisation in the guest) was corrupted thanks to
an endianness bug introduced when converting the code to use the
UUID_INIT() helper.
The second fixes a stack-pointer corruption issue during
context-switch which has been observed in the wild when taking a
pseudo-NMI with shadow call stack enabled.
Summary:
- Fix broken UUID value for the KVM/arm64 hypervisor SMCCC interface
- Fix stack corruption on context-switch, primarily seen on (but not
limited to) configurations with both pNMI and SCS enabled"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64/entry: Mask DAIF in cpu_switch_to(), call_on_irq_stack()
arm64: kvm, smccc: Fix vendor uuid
Merge tag 'net-6.16-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from can and xfrm.
The TI regression notified last week is actually on our net-next tree,
it does not affect 6.16.
We are investigating a virtio regression which is quite hard to
reproduce - currently only our CI sporadically hits it. Hopefully it
should not be critical, and I'm not sure that an additional week would
be enough to solve it.
Current release - fix to a fix:
- sched: sch_qfq: avoid sleeping in atomic context in qfq_delete_class
Previous releases - regressions:
- xfrm:
- set transport header to fix UDP GRO handling
- delete x->tunnel as we delete x
- eth:
- mlx5: fix memory leak in cmd_exec()
- i40e: when removing VF MAC filters, avoid losing PF-set MAC
- gve: fix stuck TX queue for DQ queue format
Previous releases - always broken:
- can: fix NULL pointer deref of struct can_priv::do_set_mode
- eth:
- ice: fix a null pointer dereference in ice_copy_and_init_pkg()
- ism: fix concurrency management in ism_cmd()
- dpaa2: fix device reference count leak in MAC endpoint handling
- icssg-prueth: fix buffer allocation for ICSSG
Misc:
- selftests: mptcp: increase code coverage"
* tag 'net-6.16-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (34 commits)
net: hns3: default enable tx bounce buffer when smmu enabled
net: hns3: fixed vf get max channels bug
net: hns3: disable interrupt when ptp init failed
net: hns3: fix concurrent setting vlan filter issue
s390/ism: fix concurrency management in ism_cmd()
selftests: drv-net: wait for iperf client to stop sending
MAINTAINERS: Add in6.h to MAINTAINERS
selftests: netfilter: tone-down conntrack clash test
can: netlink: can_changelink(): fix NULL pointer deref of struct can_priv::do_set_mode
net/sched: sch_qfq: Avoid triggering might_sleep in atomic context in qfq_delete_class
gve: Fix stuck TX queue for DQ queue format
net: appletalk: Fix use-after-free in AARP proxy probe
net: bcmasp: Restore programming of TX map vector register
selftests: mptcp: connect: also cover checksum
selftests: mptcp: connect: also cover alt modes
e1000e: ignore uninitialized checksum word on tgp
e1000e: disregard NVM checksum on tgp when valid checksum bit is not set
ice: Fix a null pointer dereference in ice_copy_and_init_pkg()
i40e: When removing VF MAC filters, only check PF-set MAC
i40e: report VF tx_dropped with tx_errors instead of tx_discards
...
xfs: don't pass the old lv to xfs_cil_prepare_item
By the time xfs_cil_prepare_item is called, the old lv is still pointed
to by the log item. Take it from there instead of spreading the old lv
logic over xlog_cil_insert_format_items and xfs_cil_prepare_item.
Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com> Signed-off-by: Carlos Maiolino <cem@kernel.org>
The call to the event xfs_reflink_cow_enospc was removed when the COW
handling was merged into xfs_file_iomap_begin_delay, but the trace event
itself was not. Remove it.
Fixes: db46e604adf8 ("xfs: merge COW handling into xfs_file_iomap_begin_delay") Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Carlos Maiolino <cem@kernel.org>
The trace event xfs_discard_rtrelax was added but never used. Remove it.
Fixes: a330cae8a7147 ("xfs: Remove header files which are included more than once") Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Carlos Maiolino <cem@kernel.org>
Steven Rostedt [Tue, 22 Jul 2025 20:19:09 +0000 (16:19 -0400)]
xfs: remove unused trace event xfs_log_cil_return
The trace event xfs_log_cil_return was added but never used. Remove it.
Fixes: c1220522ef405 ("xfs: grant heads track byte counts, not LSNs") Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Carlos Maiolino <cem@kernel.org>
Replace the deprecated strncpy() with memtostr_pad(). This also avoids
the need for separate zeroing using memset(). Mark sb_fname buffer with
__nonstring as its size is XFSLABEL_MAX and so no terminating NULL for
sb_fname.
Signed-off-by: Pranav Tyagi <pranav.tyagi03@gmail.com> Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Carlos Maiolino <cem@kernel.org>
projects / thirdparty / linux.git / log
