[ Upstream commit 56c17ee151 ]
The file descriptor opened in isolate_cpus() when (!level) is true was
not being closed before returning, causing a file descriptor leak in
both the error path and the success path.
When write() fails at line 950, the function returns at line 953 without
closing the file descriptor. Similarly, on success, the function returns
at line 956 without closing the file descriptor.
Add close(fd) calls before both return statements to fix the resource
leak. This follows the same pattern used elsewhere in the same function
where file descriptors are properly closed before returning (see lines
1005 and 1027).
Fixes: 997074df65 ("tools/power/x86/intel-speed-select: Use cgroup v2 isolation")
Signed-off-by: Malaya Kumar Rout <mrout@redhat.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 2734fdbc9b ]
When we are successful in using cpufreq min/max limits,
skip setting the raw MSR limits entirely.
This is necessary to avoid undoing any modification that
the cpufreq driver makes to our sysfs request.
eg. intel_pstate may take our request for a limit
that is valid according to HWP.CAP.MIN/MAX and clip
it to be within the range available in PLATFORM_INFO.
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit c97c057d35 ]
On enabling HWP, preserve the reserved bits in MSR_PM_ENABLE.
Also, skip writing the MSR_PM_ENABLE if HWP is already enabled.
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 62127655b7 ]
The fopen_or_die() function was previously hardcoded
to open files in read-only mode ("r"), ignoring the
mode parameter passed to it. This patch corrects
fopen_or_die() to use the provided mode argument,
allowing for flexible file access as intended.
Additionally, the call to fopen_or_die() in
err_on_hypervisor() incorrectly used the mode
"ro", which is not a valid fopen mode. This is
fixed to use the correct "r" mode.
Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit d34fe509f5 ]
Kernels configured with CONFIG_MULTIUSER=n have no cap_get_proc().
Check for ENOSYS to recognize this case, and continue on to
attempt to access the requested MSRs (such as temperature).
Signed-off-by: Calvin Owens <calvin@wbinvd.org>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 6ea0ec1b95 ]
turbostat.c: In function 'parse_int_file':
turbostat.c:5567:19: error: 'PATH_MAX' undeclared (first use in this function)
5567 | char path[PATH_MAX];
| ^~~~~~~~
turbostat.c: In function 'probe_graphics':
turbostat.c:6787:19: error: 'PATH_MAX' undeclared (first use in this function)
6787 | char path[PATH_MAX];
| ^~~~~~~~
Signed-off-by: Calvin Owens <calvin@wbinvd.org>
Reviewed-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit e60a13bcef ]
/sys/devices/system/cpu/intel_uncore_frequency/package_X_die_Y/
may be readable by all, but
/sys/devices/system/cpu/intel_uncore_frequency/package_X_die_Y/current_freq_khz
may be readable only by root.
Non-root turbostat users see complaints in this scenario.
Fail probe of the interface if we can't read current_freq_khz.
Reported-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Original-patch-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit adb49732c8 ]
commit 05a2f07db8 ("tools/power turbostat: read RAPL counters via
perf") that adds support to read RAPL counters via perf defines the
notion of a RAPL domain_id which is set to physical_core_id on
platforms which support per_core_rapl counters (Eg: AMD processors
Family 17h onwards) and is set to the physical_package_id on all the
other platforms.
However, the physical_core_id is only unique within a package and on
platforms with multiple packages more than one core can have the same
physical_core_id and thus the same domain_id. (For eg, the first cores
of each package have the physical_core_id = 0). This results in all
these cores with the same physical_core_id using the same entry in the
rapl_counter_info_perdomain[]. Since rapl_perf_init() skips the
perf-initialization for cores whose domain_ids have already been
visited, cores that have the same physical_core_id always read the
perf file corresponding to the physical_core_id of the first package
and thus the package-energy is incorrectly reported to be the same
value for different packages.
Note: This issue only arises when RAPL counters are read via perf and
not when they are read via MSRs since in the latter case the MSRs are
read separately on each core.
Fix this issue by associating each CPU with rapl_core_id which is
unique across all the packages in the system.
Fixes: 05a2f07db8 ("tools/power turbostat: read RAPL counters via perf")
Signed-off-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 1c7c7388e6 ]
The clustered uncore frequency counters, UMHz*.*
should honor the --show and --hide options.
All non-specified counters should be implicityly hidden.
But when --show was used, UMHz*.* showed up anyway:
$ sudo turbostat -q -S --show Busy%
Busy% UMHz0.0 UMHz1.0 UMHz2.0 UMHz3.0 UMHz4.0
Indeed, there was no string that can be used to explicitly
show or hide clustered uncore counters.
Even through they are dynamically probed and added,
group the clustered UMHz*.* counters with the legacy
built-in-counter "UncMHz" for show/hide.
turbostat --show Busy%
does not show UMHz*.*.
turbostat --show UncMHz
shows either UncMHz or UMHz*.*, if present
turbostat --hide UncMHz
hides either UncMHz or UMHz*.*, if present
Reported-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Tested-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit f729775f79 ]
The CoreThr column displays total thermal throttling events
since boot time.
Change it to report events during the measurement interval.
This is more useful for showing a user the current conditions.
Total events since boot time are still available to the user via
/sys/devices/system/cpu/cpu*/thermal_throttle/*
Document CoreThr on turbostat.8
Fixes: eae97e053f ("turbostat: Support thermal throttle count print")
Reported-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Cc: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit b32c36975d ]
In "one-shot" mode, turbostat
1. takes a counter snapshot
2. forks and waits for a child
3. takes the end counter snapshot and prints the result.
But turbostat counter snapshots currently use affinity to travel
around the system so that counter reads are "local", and this
affinity must be cleared between #1 and #2 above.
The offending commit removed that reset that allowed the child
to run on cpu_present_set.
Fix that issue, and improve upon the original by using
cpu_possible_set for the child. This allows the child
to also run on CPUs that hotplug online during its runtime.
Reported-by: Zhang Rui <rui.zhang@intel.com>
Fixes: 7bb3fe27ad ("tools/power/turbostat: Obey allowed CPUs during startup")
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 2f60f03934 ]
This (the old code) is just not how you round up to a page size.
Noticed on a recent Intel platform. Previous ones must have been
reporting sizes already aligned to a page and so the bug was missed when
testing.
Fixes: f0e4ed752f ("tools/power turbostat: Add early support for PMT counters")
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit ae2cdf8d92 ]
Intel hybrid platforms expose different perf devices for P and E cores.
Instead of one, "/sys/bus/event_source/devices/cpu" device, there are
"/sys/bus/event_source/devices/{cpu_core,cpu_atom}".
This, however makes it more complicated for the user,
because most of the counters are available on both and had to be
handled manually.
This patch allows users to use "virtual" cpu device that is seemingly
translated to cpu_core and cpu_atom perf devices, depending on the type
of a CPU we are opening the counter for.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Stable-dep-of: 2f60f03934 ("tools/power turbostat: Fix PMT mmaped file size rounding")
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 1da0daf746 ]
Add '+' to optstring when early scanning for --no-msr and --no-perf.
It causes option processing to stop as soon as a nonoption argument is
encountered, effectively skipping child's arguments.
Fixes: 3e4048466c ("tools/power turbostat: Add --no-msr option")
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit fed8511cc8 ]
parse_cpu_string() parses the string input either from command line or
from /sys/fs/cgroup/cpuset.cpus.effective to get a list of CPUs that
turbostat can run with.
The cpu string returned by /sys/fs/cgroup/cpuset.cpus.effective contains
a trailing '\n', but strtoul() fails to treat this as an error.
That says, for the code below
val = ("\n", NULL, 10);
val returns 0, and errno is also not set.
As a result, CPU0 is erroneously considered as allowed CPU and this
causes failures when turbostat tries to run on CPU0.
get_counters: Could not migrate to CPU 0
...
turbostat: re-initialized with num_cpus 8, allowed_cpus 5
get_counters: Could not migrate to CPU 0
Add a check to return immediately if '\n' or '\0' is detected.
Fixes: 8c3dd2c9e5 ("tools/power/turbostat: Abstrct function for parsing cpu string")
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Pull turbostat updates from Len Brown:
- Enable turbostat extensions to add both perf and PMT (Intel
Platform Monitoring Technology) counters via the cmdline
- Demonstrate PMT access with built-in support for Meteor Lake's
Die C6 counter
* tag 'v6.11-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
tools/power turbostat: version 2024.07.26
tools/power turbostat: Include umask=%x in perf counter's config
tools/power turbostat: Document PMT in turbostat.8
tools/power turbostat: Add MTL's PMT DC6 builtin counter
tools/power turbostat: Add early support for PMT counters
tools/power turbostat: Add selftests for added perf counters
tools/power turbostat: Add selftests for SMI, APERF and MPERF counters
tools/power turbostat: Move verbose counter messages to level 2
tools/power turbostat: Move debug prints from stdout to stderr
tools/power turbostat: Fix typo in turbostat.8
tools/power turbostat: Add perf added counter example to turbostat.8
tools/power turbostat: Fix formatting in turbostat.8
tools/power turbostat: Extend --add option with perf counters
tools/power turbostat: Group SMI counter with APERF and MPERF
tools/power turbostat: Add ZERO_ARRAY for zero initializing builtin array
tools/power turbostat: Replace enum rapl_source and cstate_source with counter_source
tools/power turbostat: Remove anonymous union from rapl_counter_info_t
tools/power/turbostat: Switch to new Intel CPU model defines
Release 2024.07.26:
Enable turbostat extensions to add both perf and PMT
(Intel Platform Monitoring Technology) counters from the cmdline.
Demonstrate PMT access with built-in support for Meteor Lake's Die%c6 counter.
This commit:
Clean up white-space nits introduced since version 2024.05.10
Signed-off-by: Len Brown <len.brown@intel.com>
Some counters, like cpu/cache-misses/, expose and require umask=%x
parameter alongside event=%x in the sysfs perf counter's event file.
This change make sure we parse and use it when opening user added
counters.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Add a general description of the user interface for adding PMT
counters with the new --add pmt,... option.
Provide a complete example for requesting two counters.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Provide a definition for metadata that allows reading DC6 residency
counter via PMT and exposes it as a builtin counter.
Note that this residency counter is updated and read via
entirely different mechanisms vs the MSR-based residency counters.
On MTL processors, there are times when Die%c6 will report above 100%.
This is still useful, but don't expect 3 digits of precision...
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Allows users to read Intel PMT (Platform Monitoring Technology)
counters, providing interface similar to one used to add MSR and perf
counters. Because PMT is exposed as a raw MMIO range, without metadata,
user has to supply the necessary information to find and correctly
display the requested counter.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Printing information about the source and value during initialization and
reading of the counter for each cpu, while useful when debugging,
results in too verbose output.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This leaves the stdout cleaner, having only counter data. It makes it
easier for programs to parse the output of turbostat, for example
selftests.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Pull x86 platform driver updates from Ilpo Järvinen:
- amd/pmf: Report system state changes using existing input events
- asus-wmi: Zenbook 2023 camera LED disable support and fix TUF laptop
keyboard RGB LED sysfs interface
- dell-pc: Fan modes / platform profile support
- hp-wmi: Fix platform profile switching on Omen/Victus laptops
- intel/ISST: Use only TPMI interface when TPMI and legacy interfaces
are available
- intel/pmc: LTR restore support to pair with LTR ignore
- intel/tpmi: Performance Limit Reasons (PLR) and APIC <-> Punit CPU
numbering mapping support
- WMI: driver override support and docs improvements
- lenovo-yoga-c630: Support for EC (platform/arm64)
- platform/arm64: Fix build with COMPILE_TEST (broke after addition of
C630)
- tools: Intel Speed Select Turbo Ratio Limit fix
- Miscellaneous cleanups / refactoring / improvements
* tag 'platform-drivers-x86-v6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (65 commits)
platform/x86: asus-wmi: fix TUF laptop RGB variant
platform/x86/intel/tpmi/plr: Fix output in plr_print_bits()
Docs/admin-guide: Remove pmf leftover reference from the index
platform/x86: ideapad-laptop: use cleanup.h
platform/x86: hp-wmi: Fix implementation of the platform_profile_omen_get function
platform: arm64: EC_LENOVO_YOGA_C630 should depend on ARCH_QCOM
platform: arm64: EC_ACER_ASPIRE1 should depend on ARCH_QCOM
platform/x86/amd/pmf: Remove update system state document
platform/x86/amd/pmf: Use existing input event codes to update system states
platform/x86: hp-wmi: Fix platform profile option switch bug on Omen and Victus laptops
platform/x86:intel/pmc: Add support to undo ltr_ignore
platform/x86:intel/pmc: Use the Elvis operator
platform/x86:intel/pmc: Use DEFINE_SHOW_STORE_ATTRIBUTE macro
platform/x86:intel/pmc: Remove unneeded min_t check
platform/x86:intel/pmc: Add support to show ltr_ignore value
platform/x86:intel/pmc: Move pmc assignment closer to first usage
platform/x86:intel/pmc: Convert index variables to be unsigned
platform/x86:intel/pmc: Simplify mutex usage with cleanup helpers
platform/x86:intel/pmc: Use the return value of pmc_core_send_msg
tools/power/x86/intel-speed-select: v1.20 release
...
We had an extra "+" at the beginning of some lines that look like a
poorly formated patch.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
User can now read perf counters using "--add perf/<device>/<event>".
Other details work similarly to how --add works with MSRs.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
These three counters now are treated similar to other perf counters
groups. This simplifies and gets rid of a lot of special cases for APERF
and MPERF.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This version addresses one issue:
- Fix updating TRL MSR after SST-TF is disabled in auto mode.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
When SST-TF is disabled in auto mode, the performance is getting
limited.
This is caused by wrong programming of Turbo Ratio Limit (TRL) MSR.
This MSR always accepts the frequency ratio in 100 MHz unit. When the
TPMI is sending TRL in 1 MHz unit, change to 100 MHz, before updating
TRL MSR.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
It makes it harder to shoot yourself in the foot, by using
additional __must_be_array() check.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
fd_perf field used to be part of the union, but later moved out of it,
because we test it with fd_perf != -1 to determine if any perf counter
is opened, making the union unused.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
New CPU #defines encode vendor and family as well as model.
N.B. Copied VFM_*() defines here from <asm/cpu_device_id.h> to avoid
an application picking a second internal kernel header file.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Commit 78464d7681 ("tools/power turbostat: Add columns for clustered
uncore frequency") introduced 'probe_intel_uncore_frequency_cluster()'
in a way which prevents printing uncore frequency columns if either of
the '-q' or '-l' options are used. Systems which do not have multiple
uncore frequencies per package are unaffected by this regression.
Fix the function so that uncore frequency columns are shown when either
the '-l' or '-q' option is used by checking if 'quiet' is true after
adding counters for the uncore frequency columns.
Fixes: 78464d7681 ("tools/power turbostat: Add columns for clustered uncore frequency")
Signed-off-by: Adam Hawley <adam.james.hawley@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
In some cases specifying the '-n' command line argument will cause
turbostat to fail. For instance 'turbostat -n 1' works fine; however,
'turbostat -n 1 -d' will fail. This is the result of the first call
to getopt_long_only() where "MP" is specified as the optstring. This can
be easily fixed by changing the optstring from "MP" to "MPn:" to remove
ambiguity between the arguments.
tools/power turbostat: option '-n' is ambiguous; possibilities: '-num_iterations' '-no-msr' '-no-perf'
Fixes: a0e86c90b8 ("tools/power turbostat: Add --no-perf option")
Signed-off-by: David Arcari <darcari@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Pull turbostat updates from Len Brown:
- Survive sparse die id's seen in Linux-6.9
- Handle clustered-uncore topology in new/upcoming hardware
- For non-root use, add ability to see software C-state counters
- Enable reading core and package hardware cstate via perf, and prefer
perf over the MSR driver access for these counters
* tag 'turbostat-for-Linux-6.10-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
tools/power turbostat: version 2024.05.10
tools/power turbostat: Ignore pkg_cstate_limit when it is not available
tools/power turbostat: Fix order of strings in pkg_cstate_limit_strings
tools/power turbostat: Read Package-cstates via perf
tools/power turbostat: Read Core-cstates via perf
tools/power turbostat: Avoid possible memory corruption due to sparse topology IDs
tools/power turbostat: Add columns for clustered uncore frequency
tools/power turbostat: Enable non-privileged users to read sysfs counters
tools/power turbostat: Replace _Static_assert with BUILD_BUG_ON
tools/power turbostat: Add ARL-H support
tools/power turbostat: Enhance ARL/LNL support
tools/power turbostat: Survive sparse die_id
tools/power turbostat: Remember global max_die_id
tools/power turbostat: Harden probe_intel_uncore_frequency()
tools/power turbostat: Add "snapshot:" Makefile target
Pull x86 platform driver updates from Hans de Goede:
- New drivers/platform/arm64 directory for arm64 embedded-controller
drivers
- New drivers:
- Acer Aspire 1 embedded controllers (for arm64 models)
- ACPI quickstart PNP0C32 buttons
- Dell All-In-One backlight support (dell-uart-backlight)
- Lenovo WMI camera buttons
- Lenovo Yoga Tablet 2 Pro 1380F/L fast charging
- MeeGoPad ANX7428 Type-C Cross Switch (power sequencing only)
- MSI WMI sensors (fan speed sensors only for now)
- Asus WMI:
- 2024 ROG Mini-LED support
- MCU powersave support
- Vivobook GPU MUX support
- Misc. other improvements
- Ideapad laptop:
- Export FnLock LED as LED class device
- Switch platform profiles using thermal management key
- Intel drivers:
- IFS: various improvements
- PMC: Lunar Lake support
- SDSI: various improvements
- TPMI/ISST: various improvements
- tools: intel-speed-select: various improvements
- MS Surface drivers:
- Fan profile switching support
- Surface Pro thermal sensors support
- ThinkPad ACPI:
- Reworked hotkey support to use sparse keymaps
- Add support for new trackpoint-doubletap, Fn+N and Fn+G hotkeys
- WMI core:
- New WMI driver development guide
- x86 Android tablets:
- Lenovo Yoga Tablet 2 Pro 1380F/L support
- Xiaomi MiPad 2 status LED and bezel touch buttons backlight
support
- Miscellaneous cleanups / fixes / improvements
* tag 'platform-drivers-x86-v6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (128 commits)
platform/x86: Add new MeeGoPad ANX7428 Type-C Cross Switch driver
devm-helpers: Fix a misspelled cancellation in the comments
tools arch x86: Add dell-uart-backlight-emulator
platform/x86: Add new Dell UART backlight driver
platform/x86: x86-android-tablets: Create LED device for Xiaomi Pad 2 bottom bezel touch buttons
platform/x86: x86-android-tablets: Xiaomi pad2 RGB LED fwnode updates
platform/x86: x86-android-tablets: Pass struct device to init()
platform/x86/amd: pmc: Add new ACPI ID AMDI000B
platform/x86/amd: pmf: Add new ACPI ID AMDI0105
platform/x86: p2sb: Don't init until unassigned resources have been assigned
platform/surface: aggregator: Log critical errors during SAM probing
platform/x86: ISST: Support SST-BF and SST-TF per level
platform/x86/fujitsu-laptop: Replace sprintf() with sysfs_emit()
tools/power/x86/intel-speed-select: v1.19 release
tools/power/x86/intel-speed-select: Display CPU as None for -1
tools/power/x86/intel-speed-select: SST BF/TF support per level
tools/power/x86/intel-speed-select: Increase number of CPUs displayed
tools/power/x86/intel-speed-select: Present all TRL levels for turbo-freq
tools/power/x86/intel-speed-select: Fix display for unsupported levels
tools/power/x86/intel-speed-select: Support multiple dies
...
New since 2024.04.08:
Len Brown (6):
tools/power turbostat: Add "snapshot:" Makefile target
tools/power turbostat: Harden probe_intel_uncore_frequency()
tools/power turbostat: Remember global max_die_id
tools/power turbostat: Survive sparse die_id
tools/power turbostat: Add columns for clustered uncore frequency
tools/power turbostat: version 2024.05.10
Patryk Wlazlyn (7):
tools/power turbostat: Replace _Static_assert with BUILD_BUG_ON
tools/power turbostat: Enable non-privileged users to read sysfs counters
tools/power turbostat: Avoid possible memory corruption due to sparse topology IDs
tools/power turbostat: Read Core-cstates via perf
tools/power turbostat: Read Package-cstates via perf
tools/power turbostat: Fix order of strings in pkg_cstate_limit_strings
tools/power turbostat: Ignore pkg_cstate_limit when it is not available
Zhang Rui (2):
tools/power turbostat: Enhance ARL/LNL support
tools/power turbostat: Add ARL-H support
Signed-off-by: Len Brown <len.brown@intel.com>
When running in no-msr mode, the pkg_cstate_limit is not populated, thus
we use perf to determine if given pcstate counter is present on the
platform.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Reading the counters via perf can be done in bulk with a single syscall,
making the counter values more accurate with respect to one another by
minimizing the time gap between individual counter reads.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Reading the counters via perf can be done in bulk with a single syscall,
making the counter values more accurate with respect to one another by
minimizing the time gap between individual counter reads.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Save the highest core and package id when parsing topology to
allocate enough memory when get_rapl_counters() is called with a core or
a package id as a domain.
Note that RAPL domains are per-package on Intel, but per-core on AMD.
Thus, the RAPL code effectively runs in different modes on those two
product lines.
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
New machines have multiple uncore frequencies per package,
visible in /sys/devices/system/cpu/intel_uncore_frequency/uncore##/
turbostat now samples these frequencies each measurement interval.
For each package, turbostat now prints "UMHzX.Y" columns,
where X = domain_id, and Y = fabric_cluster_id.
The system summary for each UMHzX.Y column is the average value
for across all of the packages in the system.
Signed-off-by: Len Brown <len.brown@intel.com>
A group of counters called "sysfs" displays software
C-state request counts and resulting perceived C-state residency.
They are not built-in counters that turbostat knows about ahead of time,
rather they are discovered in sysfs when turbostat starts.
Thus, they are added dynamically, using the same interface
as user-added MSR counters.
When turbostat enters "no-msr" mode, such as when running as a
non-privileged user, it clears all added counters.
Updating that to clear only actual MSR added counters
allows regular users to see the sysfs counters.
[lenb: commit message]
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
