Commit Graph

1243 Commits

Author SHA1 Message Date
Linus Torvalds
a6189a7407 Turbostat version 2024.04.10
Use of the CPU MSR driver is now optional.
 Perf is now preferred for many counters.
 
 Non-root users can now execute turbostat, though with limited function.
 
 Add counters for some new GFX hardware.
 
 Minor fixes.
 -----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCgAyFiEE67dNfPFP+XUaA73mB9BFOha3NhcFAmYWj4MUHGxlbi5icm93
 bkBpbnRlbC5jb20ACgkQB9BFOha3NhdH+RAArg3G1VJz2+wQGVyLqjSt4waz7nR4
 3wc0BNYCZOnInvLqWRoWjs7w2e8CzfdVHYEAFc9N3mM2FVU+LlSJuEf78if8BWZ4
 2ROXCKs2X9I4MMFFvGy4ugOsjSs9jIvYjiWUgaFNL79Fvgi4xZCIPs5cg0j4EOU9
 P2N2z3YMiO88wcGwzaH1v/hODSJ2hRhQ38KSmeIzVv64727OqLo/TIWrGMIUedBT
 sliYrojz202IoArbejfCqP7VtZhnLml6Rln+n8/X3rg3n25RYbaZnwYugkR8WmhZ
 stC0CmB6Rz9IN9yeucq+BlXDOUUUvLQwat3OHw7oZ6zg0+Uu1yD0aPXoqreiZvC3
 iJUr+Qy++NFYmMPRDTWZubdPDAcwuv+PWud2VDfqY8Jgld2GzhucBBmGA+z1NMAl
 gRXFnaUc9R7c/+ubh+R7mrlQxiRk2Jt4VduJ9wdufEWKIaIGDh/1qyFLFKOP32Ko
 zviEOV3WAJHbAGYZUUIzlKmhyQFafuyKbb/o0AO3VvqhCO0vGkzA4yauzkSYGpqo
 8IlNgJxBs0dQqTXOw5ubgnazfjvHB//kBYfvJL9Sg2nuHdQV8+0X/DfYsxvRNo/i
 9khvJF5MPnzb/sgIRXQphWxL6hwZYcx4LfRv6PQD8g7aKwAcs0D/VzcB5fZ+KM+a
 TViqVjUkJ4LSaJ0=
 =oucB
 -----END PGP SIGNATURE-----

Merge tag 'turbostat-2024.04.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

Pull turbostat updates from Len Brown:

 - Use of the CPU MSR driver is now optional

 - Perf is now preferred for many counters

 - Non-root users can now execute turbostat, though with limited
   functionality

 - Add counters for some new GFX hardware

 - Minor fixes

* tag 'turbostat-2024.04.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (26 commits)
  tools/power turbostat: v2024.04.10
  tools/power/turbostat: Add support for Xe sysfs knobs
  tools/power/turbostat: Add support for new i915 sysfs knobs
  tools/power/turbostat: Introduce BIC_SAM_mc6/BIC_SAMMHz/BIC_SAMACTMHz
  tools/power/turbostat: Fix uncore frequency file string
  tools/power/turbostat: Unify graphics sysfs snapshots
  tools/power/turbostat: Cache graphics sysfs path
  tools/power/turbostat: Enable MSR_CORE_C1_RES support for ICX
  tools/power turbostat: Add selftests
  tools/power turbostat: read RAPL counters via perf
  tools/power turbostat: Add proper re-initialization for perf file descriptors
  tools/power turbostat: Clear added counters when in no-msr mode
  tools/power turbostat: add early exits for permission checks
  tools/power turbostat: detect and disable unavailable BICs at runtime
  tools/power turbostat: Add reading aperf and mperf via perf API
  tools/power turbostat: Add --no-perf option
  tools/power turbostat: Add --no-msr option
  tools/power turbostat: enhance -D (debug counter dump) output
  tools/power turbostat: Fix warning upon failed /dev/cpu_dma_latency read
  tools/power turbostat: Read base_hz and bclk from CPUID.16H if available
  ...
2024-04-10 13:13:27 -07:00
Len Brown
3ab7296a7e tools/power turbostat: v2024.04.10
Much of turbostat can now run with perf, rather than using the MSR driver

Some of turbostat can now run as a regular non-root user.

Add some new output columns for some new GFX hardware.

[This patch updates the version, but otherwise changes no function;
 it touches up some checkpatch issues from previous patches]

Signed-off-by: Len Brown <len.brown@intel.com>
2024-04-10 09:07:57 -04:00
Zhang Rui
91a91d3895 tools/power/turbostat: Add support for Xe sysfs knobs
Xe graphics driver uses different graphics sysfs knobs including
   /sys/class/drm/card0/device/tile0/gt0/gtidle/idle_residency_ms
   /sys/class/drm/card0/device/tile0/gt0/freq0/cur_freq
   /sys/class/drm/card0/device/tile0/gt0/freq0/act_freq
   /sys/class/drm/card0/device/tile0/gt1/gtidle/idle_residency_ms
   /sys/class/drm/card0/device/tile0/gt1/freq0/cur_freq
   /sys/class/drm/card0/device/tile0/gt1/freq0/act_freq

Plus that,
   /sys/class/drm/card0/device/tile0/gt<n>/gtidle/name
returns either gt<n>-rc or gt<n>-mc. rc is for GFX and mc is SA Media.

Enhance turbostat to prefer the Xe sysfs knobs when they are available.
Export gt<n>-rc via BIC_GFX_rc6/BIC_GFXMHz/BIC_GFXACTMHz.
Export gt<n>-mc via BIC_SMA_mc6/BIC_SMAMHz/BIC_SMAACTMHz.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2024-04-10 09:02:58 -04:00
Zhang Rui
dc02dc937a tools/power/turbostat: Add support for new i915 sysfs knobs
On Meteorlake platform, i915 driver supports the traditional graphics
sysfs knobs including
   /sys/class/drm/card0/power/rc6_residency_ms
   /sys/class/drm/card0/gt_cur_freq_mhz
   /sys/class/drm/card0/gt_act_freq_mhz

At the same time, it also supports
   /sys/class/drm/card0/gt/gt0/rc6_residency_ms
   /sys/class/drm/card0/gt/gt0/rps_cur_freq_mhz
   /sys/class/drm/card0/gt/gt0/rps_act_freq_mhz
   /sys/class/drm/card0/gt/gt1/rc6_residency_ms
   /sys/class/drm/card0/gt/gt1/rps_cur_freq_mhz
   /sys/class/drm/card0/gt/gt1/rps_act_freq_mhz
gt0 is for GFX and gt1 is for SA Media.

Enhance turbostat to prefer the i915 new sysfs knobs.
Export gt0 via BIC_GFX_rc6/BIC_GFXMHz/BIC_GFXACTMHz.
Export gt1 via BIC_SMA_mc6/BIC_SMAMHz/BIC_SMAACTMHz.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2024-04-10 09:02:58 -04:00
Zhang Rui
3bbb331c1d tools/power/turbostat: Introduce BIC_SAM_mc6/BIC_SAMMHz/BIC_SAMACTMHz
Graphics driver (i915/Xe) on mordern platforms splits GFX and SA Media
information via different sysfs knobs.

Existing BIC_GFX_rc6/BIC_GFXMHz/BIC_GFXACTMHz columns can be reused for
GFX.

Introduce BIC_SAM_mc6/BIC_SAMMHz/BIC_SAMACTMHz columns for SA Media.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2024-04-10 09:02:44 -04:00
Justin Ernst
60add818ab tools/power/turbostat: Fix uncore frequency file string
Running turbostat on a 16 socket HPE Scale-up Compute 3200 (SapphireRapids) fails with:
turbostat: /sys/devices/system/cpu/intel_uncore_frequency/package_010_die_00/current_freq_khz: open failed: No such file or directory

We observe the sysfs uncore frequency directories named:
...
package_09_die_00/
package_10_die_00/
package_11_die_00/
...
package_15_die_00/

The culprit is an incorrect sprintf format string "package_0%d_die_0%d" used
with each instance of reading uncore frequency files. uncore-frequency-common.c
creates the sysfs directory with the format "package_%02d_die_%02d". Once the
package value reaches double digits, the formats diverge.

Change each instance of "package_0%d_die_0%d" to "package_%02d_die_%02d".

[lenb: deleted the probe part of this patch, as it was already fixed]

Signed-off-by: Justin Ernst <justin.ernst@hpe.com>
Reviewed-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-04-09 14:04:23 -04:00
Zhang Rui
de39d38c06 tools/power/turbostat: Unify graphics sysfs snapshots
Graphics sysfs snapshots share similar logic.
Combine them into one function to avoid code duplication.

No functional change.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-04-09 14:04:23 -04:00
Zhang Rui
4e2bbbf78c tools/power/turbostat: Cache graphics sysfs path
Graphics drivers (i915/Xe) have different sysfs knobs on different
platforms, and it is possible that different sysfs knobs fit into the
same turbostat columns.

Instead of specifying different sysfs knobs every time, detect them
once and cache the path for future use.

No functional change.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-04-09 14:04:23 -04:00
Zhang Rui
bb5db22c13 tools/power/turbostat: Enable MSR_CORE_C1_RES support for ICX
Enable Core C1 hardware residency counter (MSR_CORE_C1_RES) on ICX.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-04-09 14:04:23 -04:00
Patryk Wlazlyn
05a2f07db8 tools/power turbostat: read RAPL counters via perf
Some of the future Intel platforms will require reading the RAPL
counters via perf and not MSR. On current platforms we can still read
them using both ways.

Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-04-09 14:04:05 -04:00
Patryk Wlazlyn
ebf8449cab tools/power turbostat: Add proper re-initialization for perf file descriptors
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-04-02 12:50:17 -04:00
Patryk Wlazlyn
4a1bb4dad5 tools/power turbostat: Clear added counters when in no-msr mode
If user request --no-msr or is not able to access the MSRs,
turbostat should clear all the counters added with --add.
Because MSR access permission checks are done after the cmdline is
parsed, the decision has to be defered up until the transition into
no-msr mode happen.

Signed-off-by: Len Brown <len.brown@intel.com>
2024-04-02 12:50:15 -04:00
Patryk Wlazlyn
aed48c48fa tools/power turbostat: add early exits for permission checks
Checking early if the permissions are even needed gets rid of the
warnings about some of them missing. Earlier we issued a warning in case
of missing MSR and/or perf permissions, even when user never asked for
counters that require those.

Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-04-02 12:50:14 -04:00
Patryk Wlazlyn
5088741ec8 tools/power turbostat: detect and disable unavailable BICs at runtime
To allow unprivileged user to run turbostat seamlessly.

Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-04-02 12:50:13 -04:00
Patryk Wlazlyn
e48934c9f1 tools/power turbostat: Add reading aperf and mperf via perf API
By using the perf API we spend less time in between the reads of the
counters, resulting in more accurate calculations of the dependent
metrics.

Using perf API is also usually faster overall, although cache miss, if
we get one, is more costly when using perf vs MSR driver.

We would fallback to the msr reads if the sysfs isn't there or when in
--no-perf mode.

Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-04-02 12:50:11 -04:00
Patryk Wlazlyn
a0e86c90b8 tools/power turbostat: Add --no-perf option
Add the --no-perf option to allow users to run turbostat without
accessing perf.

Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-04-02 12:50:09 -04:00
Patryk Wlazlyn
3e4048466c tools/power turbostat: Add --no-msr option
Add --no-msr option to allow users to run turbostat without
accessing MSRs via the MSR driver.

Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-04-02 12:50:08 -04:00
Len Brown
2d2ccd5733 tools/power turbostat: enhance -D (debug counter dump) output
Eliminate redundant debug output for core and package scope counters.

Include name and path for all "ADDED" counters.

Signed-off-by: Len Brown <len.brown@intel.com>
2024-04-02 12:50:06 -04:00
Len Brown
b6fe938317 tools/power turbostat: Fix warning upon failed /dev/cpu_dma_latency read
Previously a failed read of /dev/cpu_dma_latency erroneously complained
turbostat: capget(CAP_SYS_ADMIN) failed, try "# setcap cap_sys_admin=ep ./turbostat

This went unnoticed because this file is typically visible to root,
and turbostat was typically run as root.

Going forward, when a non-root user can run turbostat...
Complain about failed read access to this file only if --debug is used.

Signed-off-by: Len Brown <len.brown@intel.com>
2024-04-02 12:50:04 -04:00
Patryk Wlazlyn
538d505fde tools/power turbostat: Read base_hz and bclk from CPUID.16H if available
If MSRs cannot be read, values can be obtained from cpuid.

Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-04-02 12:50:02 -04:00
Rafael J. Wysocki
3208a9a07b linux-cpupower-6.9-rc1
This cpupower update for Linux 6.9-rc1 consists of a single fix
 to a typo in cpupower-frequency-info.1 man page.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmXo1MUACgkQCwJExA0N
 QxyT/w/8CNGTh2cZuR3JGPQuU/aRmqJEzKE6WPcQH4yCXWTu8icOkm0j6W5VSq/I
 7wzoUMuUcXBTAP1DCJwTSXVcfxE9bHPKR2TTcoAzSzatOWtL6yVmPVOB5utW3I2c
 DQKkN7BbxZV1zzIDmw3bgLbh+MZjzQwawdpIb0w9KgIKD6ItDFC6LqfH01o9HfGt
 Lvp5Qy0d2qc+9rHJsRPgUyTPeDo4EtndG2/eW6ukMj7oB84jLY5x3SpeEHGQnByV
 j+5dpzCVWorWHqvyq1qO5Yeayc6llvhEZFk9DSg78q75amLBAnRk7q5B1kl7TIQb
 N9nICol4hV2wHonv7yP9rsVooGsT/7m41gBkXCX+yh/aFwQWPMXDq2nTo6J1OlkO
 Tu0kCsGX2RrsooyiRPT/siypLXjjf+BiA+WRgur7iZCp+IBsBVBiS88bKJe+IlVV
 AZpsoqwiOHDQBV9Geg2MsTz0goHvbIU9OmQM7Gg9reGq0XvqBYvgxM0AFmIA/30I
 9KYjusU6ZWHDccCcMvBlukjz2upzn9dS0nRIXloNXby5FKpmm2ejiiLCJVVo0yoI
 0yfDkGakX2mai2G7Kj8s+Uv428MJw7SXVloGo2pWg0WBYXn4f0QAlC7c5M7PW30y
 0Nj+h5K6J2T1+dPVwBw2zFh/V97t14ztHiMisKVlPiv0c6ejHi8=
 =oaz3
 -----END PGP SIGNATURE-----

Merge tag 'linux-cpupower-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux

Merge a cpupower utility documentation update for 6.9-rc1 from Shuah Khan:

"This cpupower update for Linux 6.9-rc1 consists of a single fix
 to a typo in cpupower-frequency-info.1 man page."

* tag 'linux-cpupower-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux:
  Fix cpupower-frequency-info.1 man page typo
2024-03-07 21:02:51 +01:00
Jan Kratochvil
a114d9f1f2 Fix cpupower-frequency-info.1 man page typo
cpupower-frequency-info.1 man page type is incorrect for
related-cpus. Fix it.

utils/cpufreq-info.c
        {"related-cpus",  no_argument,   NULL,   'r'},
        {"affected-cpus", no_argument,   NULL,   'a'},

Fixed changelog before applying:
Shuah Khan <skhan@linuxfoundation.org>

Signed-off-by: Jan Kratochvil <jan@jankratochvil.net>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-03-06 09:27:57 -07:00
Samasth Norway Ananda
f85450f134 tools/power x86_energy_perf_policy: Fix file leak in get_pkg_num()
In function get_pkg_num() if fopen_or_die() succeeds it returns a file
pointer to be used. But fclose() is never called before returning from
the function.

Signed-off-by: Samasth Norway Ananda <samasth.norway.ananda@oracle.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2024-02-22 20:05:28 +01:00
Stanley Chan
0086ffec76 tools cpupower bench: Override CFLAGS assignments
Allow user to specify outside CFLAGS values as make argument

Corrects an issue where CFLAGS is passed as a make argument for
cpupower, but bench's makefile does not inherit and append to them.

Signed-off-by: Stanley Chan <schan@cloudflare.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-01-21 16:57:51 -07:00
Patryk Wlazlyn
fb5ceca046 tools/power turbostat: Print ucode revision only if valid
If the MSR read were to fail, turbostat would print "microcode 0x0"

Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-01-18 11:42:41 -06:00
Len Brown
bb6181fa6b tools/power turbostat: Expand probe_intel_uncore_frequency()
Print current frequency along with the current (and initial) limits

Probe and print uncore config also for machines using the new cluster API

Signed-off-by: Len Brown <len.brown@intel.com>
2024-01-18 11:42:17 -06:00
Chen Yu
227ed18f45 tools/power turbostat: Do not print negative LPI residency
turbostat prints the abnormal SYS%LPI across suspend-to-idle:
SYS%LPI = 114479815993277.50

This is reproduced by:
Run a freeze cycle, e.g. "sleepgraph -m freeze -rtcwake 15".
Then do a reboot. After boot up, launch the suspend-idle-idle
and check the SYS%LPI field.

The slp_so residence counter is in LPIT table, and BIOS does not
clears this register across reset. The PMC expects the OS to calculate
the LPI residency based on the delta. However, there is an firmware
issue that the LPIT gets cleared to 0 during the second suspend
to idle after the reboot, which brings negative delta value.

[lenb: updated to print "neg" upon this BIOS failure]

Reported-by: Todd Brandt <todd.e.brandt@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-01-12 12:43:19 -06:00
Peng Liu
0b13410b52 tools/power turbostat: Fix Bzy_MHz documentation typo
The code calculates Bzy_MHz by multiplying TSC_delta * APERF_delta/MPERF_delta
The man page erroneously showed that TSC_delta was divided.

Signed-off-by: Peng Liu <liupeng17@lenovo.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-01-12 12:43:19 -06:00
Wyes Karny
3ac1d14d05 tools/power turbostat: Increase the limit for fd opened
When running turbostat, a system with 512 cpus reaches the limit for
maximum number of file descriptors that can be opened. To solve this
problem, the limit is raised to 2^15, which is a large enough number.

Below data is collected from AMD server systems while running turbostat:

|-----------+-------------------------------|
| # of cpus | # of opened fds for turbostat |
|-----------+-------------------------------|
| 128       | 260                           |
|-----------+-------------------------------|
| 192       | 388                           |
|-----------+-------------------------------|
| 512       | 1028                          |
|-----------+-------------------------------|

So, the new max limit would be sufficient up to 2^14 cpus (but this
also depends on how many counters are enabled).

Reviewed-by: Doug Smythies <dsmythies@telus.net>
Tested-by: Doug Smythies <dsmythies@telus.net>
Signed-off-by: Wyes Karny <wyes.karny@amd.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-01-12 12:43:19 -06:00
Doug Smythies
e5f4e68eed tools/power turbostat: Fix added raw MSR output
When using --Summary mode, added MSRs in raw mode always
print zeros. Print the actual register contents.

Example, with patch:

note the added column:
--add msr0x64f,u32,package,raw,REASON

Where:

0x64F is MSR_CORE_PERF_LIMIT_REASONS

Busy%   Bzy_MHz PkgTmp  PkgWatt CorWatt     REASON
0.00    4800    35      1.42    0.76    0x00000000
0.00    4801    34      1.42    0.76    0x00000000
80.08   4531    66      108.17  107.52  0x08000000
98.69   4530    66      133.21  132.54  0x08000000
99.28   4505    66      128.26  127.60  0x0c000400
99.65   4486    68      124.91  124.25  0x0c000400
99.63   4483    68      124.90  124.25  0x0c000400
79.34   4481    41      99.80   99.13   0x0c000000
0.00    4801    41      1.40    0.73    0x0c000000

Where, for the test processor (i5-10600K):

PKG Limit #1: 125.000 Watts, 8.000000 sec
MSR bit 26 = log; bit 10 = status

PKG Limit #2: 136.000 Watts, 0.002441 sec
MSR bit 27 = log; bit 11 = status

Example, without patch:

Busy%   Bzy_MHz PkgTmp  PkgWatt CorWatt     REASON
0.01    4800    35      1.43    0.77    0x00000000
0.00    4801    35      1.39    0.73    0x00000000
83.49   4531    66      112.71  112.06  0x00000000
98.69   4530    68      133.35  132.69  0x00000000
99.31   4500    67      127.96  127.30  0x00000000
99.63   4483    69      124.91  124.25  0x00000000
99.61   4481    69      124.90  124.25  0x00000000
99.61   4481    71      124.92  124.25  0x00000000
59.35   4479    42      75.03   74.37   0x00000000
0.00    4800    42      1.39    0.73    0x00000000
0.00    4801    42      1.42    0.76    0x00000000

c000000

[lenb: simplified patch to apply only to package scope]

Signed-off-by: Doug Smythies <dsmythies@telus.net>
Signed-off-by: Len Brown <len.brown@intel.com>
2024-01-12 12:42:35 -06:00
David Woodhouse
b85e2dab33 PM: tools: Fix sleepgraph syntax error
The sleepgraph tool currently fails:

  File "/usr/bin/sleepgraph", line 4155
    or re.match('psci: CPU(?P<cpu>[0-9]*) killed.*', msg)):
                                                         ^
SyntaxError: unmatched ')'

Fixes: 34ea427e01 ("PM: tools: sleepgraph: Recognize "CPU killed" messages")
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-11-20 17:59:58 +01:00
Linus Torvalds
9ea991a50d turbostat-2023.11.07
-----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCgAyFiEE67dNfPFP+XUaA73mB9BFOha3NhcFAmVO9MoUHGxlbi5icm93
 bkBpbnRlbC5jb20ACgkQB9BFOha3NhcJqhAAryDKEnmhbz0Xu746fL6cuTqrsJXr
 7QyswqsJnzqWHWvFsxzBXvXe9iCH73dlfT2TGtPbKuevskvJVAhNGrULIX+k9ddP
 rVRgKvCyJuajMzTbKEjJDUm1a142WFSUNPBxvH6LSdmqmMhPt76cK19Z38kIreMt
 CM+c0NJwzEGED7SvsCR4SV2dSzrbru40ni6knsYjbaaeUr5pRE3W4qxbSwVdKBW4
 lnnmU6R0xZkZ0IYA90xiXso4YZ81dBY4vV4pUpVewqgT1uQOLA4pfabIW8fYDPnW
 gkUtAVFWaky2L7zwvLsMkg5f3gkTKUCCKkDEbBuWj84YwqAOHC2pV23aJ2iBkP2C
 SyBnHiI9u0oYg+uDtM8SPxoTDiDhSNUq/mfVa/VZwwItSb1IOiTlhCrRzU4z4+IO
 R/+eyJYsK//EiIs9EjVANafzGbnvrBvfZAkXVrHExfSyiN/6wDrpo2E4lFeELxwW
 CUf4X1dtv/RdFFjju5cu/Q/DntENqxife9QHRTsn1lJsPZ+Pp/D9qZ4shA+o1P6a
 bnXDph4DjCC7i2QYo55NcO6LbfpVJ03IPg3CZjScaW1PCN4ELkE9AJju7HkHEZCB
 icOvpKF4vOjeGJRQI0BDXr1w0re1ZSg2ylDCappq0ud/zSOkYIK6q1V2Uh4CWGv+
 XX43X38SiMdyfuc=
 =J72l
 -----END PGP SIGNATURE-----

Merge tag 'turbostat-2023.11.07' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

Pull turbostat updates from Len Brown:

 - Turbostat features are now table-driven (Rui Zhang)

 - Add support for some new platforms (Sumeet Pawnikar, Rui Zhang)

 - Gracefully run in configs when CPUs are limited (Rui Zhang, Srinivas
   Pandruvada)

 - misc minor fixes

[ This came in during the merge window, but sorting out the signed tag
  took a while, so thus the late merge   - Linus ]

* tag 'turbostat-2023.11.07' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (86 commits)
  tools/power turbostat: version 2023.11.07
  tools/power/turbostat: bugfix "--show IPC"
  tools/power/turbostat: Add initial support for LunarLake
  tools/power/turbostat: Add initial support for ArrowLake
  tools/power/turbostat: Add initial support for GrandRidge
  tools/power/turbostat: Add initial support for SierraForest
  tools/power/turbostat: Add initial support for GraniteRapids
  tools/power/turbostat: Add MSR_CORE_C1_RES support for spr_features
  tools/power/turbostat: Move process to root cgroup
  tools/power/turbostat: Handle cgroup v2 cpu limitation
  tools/power/turbostat: Abstrct function for parsing cpu string
  tools/power/turbostat: Handle offlined CPUs in cpu_subset
  tools/power/turbostat: Obey allowed CPUs for system summary
  tools/power/turbostat: Obey allowed CPUs for primary thread/core detection
  tools/power/turbostat: Abstract several functions
  tools/power/turbostat: Obey allowed CPUs during startup
  tools/power/turbostat: Obey allowed CPUs when accessing CPU counters
  tools/power/turbostat: Introduce cpu_allowed_set
  tools/power/turbostat: Remove PC7/PC9 support on ADL/RPL
  tools/power/turbostat: Enable MSR_CORE_C1_RES on recent Intel client platforms
  ...
2023-11-18 09:09:17 -08:00
Len Brown
b8337e6a78 tools/power turbostat: version 2023.11.07
Turbostat features are now table-driven (Rui Zhang)
Add support for some new platforms (Sumeet Pawnikar, Rui Zhang)
Gracefully run in configs when CPUs are limited (Rui Zhang, Srinivas Pandruvada)
misc minor fixes.

Signed-off-by: Len Brown <len.brown@intel.com>
2023-11-07 23:28:30 -05:00
Len Brown
f2c1dba311 tools/power/turbostat: bugfix "--show IPC"
turbostat --show IPC

displays "inf" for the IPC column

turbostat was missing the explicit dependency of IPC on APERF,
and thus neglected to collect APERF when only IPC was requested.

typcial use:

turbostat --quiet --show CPU,IPC

Signed-off-by: Len Brown <len.brown@intel.com>
2023-11-07 23:26:42 -05:00
Rafael J. Wysocki
36cbb924d6 Merge branch 'pm-tools'
Merge cpupower utility update for 6.7-rc1:

 - Fix a reference to a removed document in the cpupower utility
   documentation (Vegard Nossum).

* pm-tools:
  cpupower: fix reference to nonexistent document
2023-11-07 20:46:13 +01:00
Rafael J. Wysocki
a563c99f22 linux-cpupower-6.7-rc1
This cpupower update for Linux 6.7-rc1 consists of a single fix to
 documentation to fix reference to a removed document.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmVBZZcACgkQCwJExA0N
 QxxB9w/+KfLlAOCThW9LZauqVsVJHzzMuDi6ctuvnUsy39Xf/VH22SzakhYoujfT
 vuQ43cLqIT/p9HkjbQnC0uJTx3nIIs/qWRWyklMn9ETAp+TP14ewTFRYAiPL/XRh
 GylTbCzh2QmU0oiR81Cq4bMRGkzywGHKi7g+E5LQ7ACz1McreWHIXonPokLEGO7n
 61Z1M9Q43333IZSAE+erop5CVJTOsFTf3Ox2RLroNg9MNFX1OiUuBrpSsG2O44BX
 59A0vQxIRuDqDgBDZapb0lpjj/E4pdyuKbBSZVDDKXbe9vWdhomibwMISiM9vjNm
 z8zy2lUA+qUE2UDSZFVFVDKk8hPwgSvcZfKhFUuuc3K+vXixNfxhFg7TVdH5RwkV
 pNgcXMuQjqPXz4k59MWS0E68aWPsvfsA3Xt/GD3yr4aSDskrzIiyc6F0u67mW1qG
 T1sQdzg2AHKXb7g774T2OW6ugeoEZ5LftDDZxTZx0+UIGk7JysXb9ksNJTqItnCI
 j4MSOK25EbHR/pk0cJAlCfn6kGYYOMzuTiOf+xEz4FvYHeduEAvUbT5irBMGkETI
 W4hwsv/fUPOhVMc4uYEZCIf6vcdLPDs9REvB55VGQm4O3CNM+ETBeRwnDHD8QaWg
 qPM8+vnrUjiE33YVPF0F/QhkJxSo+SZP79igwzpBva5ttkUuOpg=
 =p8rZ
 -----END PGP SIGNATURE-----

Merge tag 'linux-cpupower-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux

Merge cpupower utility update for 6.7-rc1 from Shuah Khan:

"This cpupower update for Linux 6.7-rc1 consists of a single fix to
 documentation to fix reference to a removed document."

* tag 'linux-cpupower-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux:
  cpupower: fix reference to nonexistent document
2023-11-03 15:30:10 +01:00
Linus Torvalds
7dc0e9c7dd linux_kselftest-next-6.7-rc1
This kselftest update for Linux 6.7-rc1 consists of:
 
 -- kbuild kselftest-merge target fixes
 -- fixes to several tests
 -- resctrl test fixes and enhancements
 -- ksft_perror() helper and reporting improvements
 -- printf attribute to kselftest prints to improve reporting
 -- documentation and clang build warning fixes
 
 Bulk of the patches are for resctrl fixes and enhancements.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAmVCoHMACgkQCwJExA0N
 QxwzrA//ehiiLdV2lyghzPpDTVY8jKlB1xIpg3s0r0M3m/j6nAdnOgOe2gkapT7T
 gFGL0r7xL9crqFdymwDANLSvNWOeghqB1oIok9Ruw5Rl3FcLnkh920bE6tPsddJg
 9+/KqtZvL0Sr43l9OSgX2Uzqyw60wRQwpO0431hmgnKjblk8Rh4GZ7fUCLLNf4Ia
 yOq1s2/cdmEwRc96lDaBWZaOTusejwh/xy8tgAjozHipLsmsexbyyHVWJWkVhMOD
 ZklCtrq4lckRz+Vky6akvjoL6Mjl//7pg323e2fUcDCQxQvqwnCo2VqqyOVBnN2A
 6XHQ6yXwh0xzCKRFgAiFhWlsKOz3wEIDrdp4dmhDkg4lw4gGJcwNke1UyX5zXYKM
 1a6R1vbQS9qQOsWf34AYKZBHruFNtUt0FJYgI43SuH+fGc0D5cU91Rz+s9QIPCwj
 8tcr5RWin8BOziDz05lxSKWRHD+3oc5qmsmGYBJhilwtvY2wNbRZNDZjiO28kiIy
 3kUWXeCtHmZE1KHK1H5v6bMC8SqUU7ukvV5WebqGpxzJ2eFPbeXcek9/AWSWOFni
 7thUg6MG3e4c/zRk8JYbmqXS/GeTkdmc3+VMXApLhTB8uSOWsnVMfJS9Zc2A1tGg
 n6NRBJFQO8t9Wm1l9XvlnC9HA/8lO/3uih+SzKn/u8KvoN96HPM=
 =JZb+
 -----END PGP SIGNATURE-----

Merge tag 'linux_kselftest-next-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest updates from Shuah Khan:

 - kbuild kselftest-merge target fixes

 - fixes to several tests

 - resctrl test fixes and enhancements

 - ksft_perror() helper and reporting improvements

 - printf attribute to kselftest prints to improve reporting

 - documentation and clang build warning fixes

The bulk of the patches are for resctrl fixes and enhancements.

* tag 'linux_kselftest-next-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (51 commits)
  selftests/resctrl: Fix MBM test failure when MBA unavailable
  selftests/clone3: Report descriptive test names
  selftests:modify the incorrect print format
  selftests/efivarfs: create-read: fix a resource leak
  selftests/ftrace: Add riscv support for kprobe arg tests
  selftests/ftrace: add loongarch support for kprobe args char tests
  selftests/amd-pstate: Added option to provide perf binary path
  selftests/amd-pstate: Fix broken paths to run workloads in amd-pstate-ut
  selftests/resctrl: Move run_benchmark() to a more fitting file
  selftests/resctrl: Fix schemata write error check
  selftests/resctrl: Reduce failures due to outliers in MBA/MBM tests
  selftests/resctrl: Fix feature checks
  selftests/resctrl: Refactor feature check to use resource and feature name
  selftests/resctrl: Move _GNU_SOURCE define into Makefile
  selftests/resctrl: Remove duplicate feature check from CMT test
  selftests/resctrl: Extend signal handler coverage to unmount on receiving signal
  selftests/resctrl: Fix uninitialized .sa_flags
  selftests/resctrl: Cleanup benchmark argument parsing
  selftests/resctrl: Remove ben_count variable
  selftests/resctrl: Make benchmark command const and build it with pointers
  ...
2023-11-01 17:08:10 -10:00
Linus Torvalds
59fff63cc2 platform-drivers-x86 for v6.7-1
Highlights:
  - asus-wmi:		Support for screenpad and solve brightness key
 			press duplication
  - int3472:		Eliminate the last use of deprecated GPIO functions
  - mlxbf-pmc:		New HW support
  - msi-ec:		Support new EC configurations
  - thinkpad_acpi:	Support reading aux MAC address during passthrough
  - wmi: 		Fixes & improvements
  - x86-android-tablets:	Detection fix and avoid use of GPIO private APIs
  - Debug & metrics interface improvements
  - Miscellaneous cleanups / fixes / improvements
 
 The following is an automated shortlog grouped by driver:
 
 acer-wmi:
  -  Remove void function return
 
 amd/hsmp:
  -  add support for metrics tbl
  -  create plat specific struct
  -  Fix iomem handling
  -  improve the error log
 
 amd/pmc:
  -  Add dump_custom_stb module parameter
  -  Add PMFW command id to support S2D force flush
  -  Handle overflow cases where the num_samples range is higher
  -  Use flex array when calling amd_pmc_stb_debugfs_open_v2()
 
 asus-wireless:
  -  Replace open coded acpi_match_acpi_device()
 
 asus-wmi:
  -  add support for ASUS screenpad
  -  Do not report brightness up/down keys when also reported by acpi_video
 
 gpiolib: acpi:
  -  Add a ignore interrupt quirk for Peaq C1010
  -  Check if a GPIO is listed in ignore_interrupt earlier
 
 hp-bioscfg:
  -  Annotate struct bios_args with __counted_by
 
 inspur-platform-profile:
  -  Add platform profile support
 
 int3472:
  -  Add new skl_int3472_fill_gpiod_lookup() helper
  -  Add new skl_int3472_gpiod_get_from_temp_lookup() helper
  -  Stop using gpiod_toggle_active_low()
  -  Switch to devm_get_gpiod()
 
 intel: bytcrc_pwrsrc:
  -  Convert to platform remove callback returning void
 
 intel/ifs:
  -  Add new CPU support
  -  Add new error code
  -  ARRAY BIST for Sierra Forest
  -  Gen2 scan image loading
  -  Gen2 Scan test support
  -  Metadata validation for start_chunk
  -  Refactor image loading code
  -  Store IFS generation number
  -  Validate image size
 
 intel_speed_select_if:
  -  Remove hardcoded map size
  -  Use devm_ioremap_resource
 
 intel/tpmi:
  -  Add debugfs support for read/write blocked
  -  Add defines to get version information
 
 intel-uncore-freq:
  -  Ignore minor version change
 
 ISST:
  -  Allow level 0 to be not present
  -  Ignore minor version change
  -  Use fuse enabled mask instead of allowed levels
 
 mellanox:
  -  Fix misspelling error in routine name
  -  Rename some init()/exit() functions for consistent naming
 
 mlxbf-bootctl:
  -  Convert to platform remove callback returning void
 
 mlxbf-pmc:
  -  Add support for BlueField-3
 
 mlxbf-tmfifo:
  -  Convert to platform remove callback returning void
 
 mlx-Convert to platform remove callback returning void:
  - mlx-Convert to platform remove callback returning void
 
 mlxreg-hotplug:
  -  Convert to platform remove callback returning void
 
 mlxreg-io:
  -  Convert to platform remove callback returning void
 
 mlxreg-lc:
  -  Convert to platform remove callback returning void
 
 msi-ec:
  -  Add more EC configs
  -  rename fn_super_swap
 
 nvsw-sn2201:
  -  Convert to platform remove callback returning void
 
 sel3350-Convert to platform remove callback returning void:
  - sel3350-Convert to platform remove callback returning void
 
 siemens: simatic-ipc-batt-apollolake:
  -  Convert to platform remove callback returning void
 
 siemens: simatic-ipc-batt:
  -  Convert to platform remove callback returning void
 
 siemens: simatic-ipc-batt-elkhartlake:
  -  Convert to platform remove callback returning void
 
 siemens: simatic-ipc-batt-f7188x:
  -  Convert to platform remove callback returning void
 
 siemens: simatic-ipc-batt:
  -  Simplify simatic_ipc_batt_remove()
 
 surface: acpi-notify:
  -  Convert to platform remove callback returning void
 
 surface: aggregator:
  -  Annotate struct ssam_event with __counted_by
 
 surface: aggregator-cdev:
  -  Convert to platform remove callback returning void
 
 surface: aggregator-registry:
  -  Convert to platform remove callback returning void
 
 surface: dtx:
  -  Convert to platform remove callback returning void
 
 surface: gpe:
  -  Convert to platform remove callback returning void
 
 surface: hotplug:
  -  Convert to platform remove callback returning void
 
 surface: surface3-wmi:
  -  Convert to platform remove callback returning void
 
 think-lmi:
  -  Add bulk save feature
  -  Replace kstrdup() + strreplace() with kstrdup_and_replace()
  -  Use strreplace() to replace a character by nul
 
 thinkpad_acpi:
  -  Add battery quirk for Thinkpad X120e
  -  replace deprecated strncpy with memcpy
  -  sysfs interface to auxmac
 
 tools/power/x86/intel-speed-select:
  -  Display error for core-power support
  -  Increase max CPUs in one request
  -  No TRL for non compute domains
  -  Sanitize integer arguments
  -  turbo-mode enable disable swapped
  -  Update help for TRL
  -  Use cgroup isolate for CPU 0
  -  v1.18 release
 
 wmi:
  -  Decouple probe deferring from wmi_block_list
  -  Decouple WMI device removal from wmi_block_list
  -  Fix opening of char device
  -  Fix probe failure when failing to register WMI devices
  -  Fix refcounting of WMI devices in legacy functions
 
 x86-android-tablets:
  -  Add a comment about x86_android_tablet_get_gpiod()
  -  Create a platform_device from module_init()
  -  Drop "linux,power-supply-name" from lenovo_yt3_bq25892_0_props[]
  -  Fix Lenovo Yoga Tablet 2 830F/L vs 1050F/L detection
  -  Remove invalid_aei_gpiochip from Peaq C1010
  -  Remove invalid_aei_gpiochip support
  -  Stop using gpiolib private APIs
  -  Use platform-device as gpio-keys parent
 
 xo15-ebook:
  -  Replace open coded acpi_match_acpi_device()
 
 Merges:
  -  Merge branch 'pdx86/platform-drivers-x86-int3472' into review-ilpo
  -  Merge branch 'pdx86/platform-drivers-x86-mellanox-init' into review-ilpo
  -  Merge remote-tracking branch 'intel-speed-select/intel-sst' into review-ilpo
  -  Merge remote-tracking branch 'pdx86/platform-drivers-x86-android-tablets' into review-hans
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQSCSUwRdwTNL2MhaBlZrE9hU+XOMQUCZT+lBwAKCRBZrE9hU+XO
 Mck0AQCFU7dYLCF4d1CXtHf1eZhSXLpYdhcO+C08JGGoM+MqSgD+Jyb9KJHk4pxE
 FvKG51I9neyAne9lvNrLodHRzxCYgAo=
 =duM8
 -----END PGP SIGNATURE-----

Merge tag 'platform-drivers-x86-v6.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Ilpo Järvinen:

 - asus-wmi: Support for screenpad and solve brightness key press
   duplication

 - int3472: Eliminate the last use of deprecated GPIO functions

 - mlxbf-pmc: New HW support

 - msi-ec: Support new EC configurations

 - thinkpad_acpi: Support reading aux MAC address during passthrough

 - wmi: Fixes & improvements

 - x86-android-tablets: Detection fix and avoid use of GPIO private APIs

 - Debug & metrics interface improvements

 - Miscellaneous cleanups / fixes / improvements

* tag 'platform-drivers-x86-v6.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (80 commits)
  platform/x86: inspur-platform-profile: Add platform profile support
  platform/x86: thinkpad_acpi: Add battery quirk for Thinkpad X120e
  platform/x86: wmi: Decouple WMI device removal from wmi_block_list
  platform/x86: wmi: Fix opening of char device
  platform/x86: wmi: Fix probe failure when failing to register WMI devices
  platform/x86: wmi: Fix refcounting of WMI devices in legacy functions
  platform/x86: wmi: Decouple probe deferring from wmi_block_list
  platform/x86/amd/hsmp: Fix iomem handling
  platform/x86: asus-wmi: Do not report brightness up/down keys when also reported by acpi_video
  platform/x86: thinkpad_acpi: replace deprecated strncpy with memcpy
  tools/power/x86/intel-speed-select: v1.18 release
  tools/power/x86/intel-speed-select: Use cgroup isolate for CPU 0
  tools/power/x86/intel-speed-select: Increase max CPUs in one request
  tools/power/x86/intel-speed-select: Display error for core-power support
  tools/power/x86/intel-speed-select: No TRL for non compute domains
  tools/power/x86/intel-speed-select: turbo-mode enable disable swapped
  tools/power/x86/intel-speed-select: Update help for TRL
  tools/power/x86/intel-speed-select: Sanitize integer arguments
  platform/x86: acer-wmi: Remove void function return
  platform/x86/amd/pmc: Add dump_custom_stb module parameter
  ...
2023-10-31 17:53:00 -10:00
Vegard Nossum
6feb1a9641 cpupower: fix reference to nonexistent document
This file was renamed from .txt to .rst and left a dangling reference.
Fix it.

Fixes: 151f4e2bdc ("docs: power: convert docs to ReST and rename to *.rst")
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Srivatsa S. Bhat (VMware) <srivatsa@csail.mit.edu>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Len Brown <len.brown@intel.com>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2023-10-25 10:14:35 -06:00
Sumeet Pawnikar
956dbd3de4 tools/power/turbostat: Add initial support for LunarLake
Add initial support for LunarLake platform.

It shares the same features with CannonLake.

Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com>
2023-10-24 13:38:09 +08:00
Sumeet Pawnikar
7b57e7b683 tools/power/turbostat: Add initial support for ArrowLake
Add initial support for ArrowLake platform.

It shares the same features with CannonLake.

Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com>
2023-10-24 13:38:09 +08:00
Zhang Rui
5a6efcb910 tools/power/turbostat: Add initial support for GrandRidge
Add initial support for GrandRidge.

It shares the same features as SierraForest, except that it does not
support PC2/PC6.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2023-10-24 13:38:09 +08:00
Zhang Rui
d33605f367 tools/power/turbostat: Add initial support for SierraForest
Add initial support for SierraForest.

It shares the same features with SapphireRapids, except that it has
MSR_MODULE_C6_RES_MS support.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2023-10-24 13:38:09 +08:00
Zhang Rui
5feab4a6b8 tools/power/turbostat: Add initial support for GraniteRapids
Add initial support for GraniteRapids.

It shares the same features with SapphireRapids.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2023-10-24 13:38:09 +08:00
Zhang Rui
0e3f10e6aa tools/power/turbostat: Add MSR_CORE_C1_RES support for spr_features
Add MSR_CORE_C1_RES support for spr_features because both Sapphirerapids
and Emeraldrapids support this MSR.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2023-10-24 13:38:09 +08:00
Srinivas Pandruvada
37f68a2940 tools/power/turbostat: Move process to root cgroup
When available CPUs are reduced via cgroup cpuset controller, turbostat
will exit with errors (For example):
	get_counters: Could not migrate to CPU 0
	turbostat: re-initialized with num_cpus 20
	get_counters: Could not migrate to CPU 0
	turbostat: re-initialized with num_cpus 20

Move the turbostat to root cgroup, which has every CPU.

Writing the value 0 to a cgroup.procs file causes the writing
process to be moved to the corresponding cgroup.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Tested-by: Zhang Rui <rui.zhang@intel.com>
2023-10-24 13:38:09 +08:00
Zhang Rui
f638858da0 tools/power/turbostat: Handle cgroup v2 cpu limitation
CPUs can be isolated via cgroup settings and turbostat should avoid
migrating to these CPUs, just like it does for the '-c' cpus.

Introduce cpu_effective_set to save the cgroup cpu limitation info from
/sys/fs/cgroup/cpuset.cpus.effective. And use cpu_allowed_set as the
intersection of cpu_present_set, cpu_effective_set and cpu_subset.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2023-10-24 13:38:09 +08:00
Zhang Rui
8c3dd2c9e5 tools/power/turbostat: Abstrct function for parsing cpu string
Abstract parse_cpu_str() which can update any specified cpu_set by a
given cpu string. This can be used to handle further CPU limitations
from other sources like cgroup.

The cpu string parsing code is also enhanced to handle the strings that
have an extra '\n' before string terminator.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2023-10-24 13:37:46 +08:00
Zhang Rui
c25ef0e5d9 tools/power/turbostat: Handle offlined CPUs in cpu_subset
It is possible that the cpu_subset contains offlined CPUs.

If this happens during start, exit immediately because this is likely an
operator error that is best fixed by re-invoking.
If this happens at runtime, give a warning only because turbostat should
do its best effort to continue running.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2023-10-20 14:21:27 +08:00
Zhang Rui
0fe3752901 tools/power/turbostat: Obey allowed CPUs for system summary
System summary should summarize the information for allowed CPUs instead
of all the present CPUs.

Introduce topology information for allowed CPUs, and use them to
get system summary.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2023-10-20 14:20:07 +08:00