Commit Graph

546 Commits

Author SHA1 Message Date
Laura Abbott e29dc460d6 tools/power turbostat: Don't make man pages executable
rpm-lint flagged these as being executable:

kernel-tools.x86_64: W: spurious-executable-perm /usr/share/man/man8/turbostat.8.gz
kernel-tools.x86_64: W: spurious-executable-perm /usr/share/man/man8/x86_energy_perf_policy.8.gz

Fix this

Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2018-06-01 17:15:09 -04:00
Len Brown 94d6ab4b11 tools/power turbostat: remove blank lines
When the user reuests to collect and show columns
that are not present on every row (eg. for every CPU)
turbostat still prints an (empty) line for every CPU.
Update so no blank lines are printed.

old:
	# turbostat --quiet --show Pkg%pc6
	Pkg%pc6
	9.12
	9.12

	Pkg%pc6
	9.12
	9.12

new:
	# turbostat --quiet --show Pkg%pc6
	Pkg%pc6
	9.12
	9.12
	Pkg%pc6
	9.12
	9.12

Reported-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2018-06-01 17:15:09 -04:00
Artem Bityutskiy 3e8b62bf0c tools/power turbostat: a small C-states dump readability immprovement
Improve readability a little bit by changing this output:

 MSR_PKG_CST_CONFIG_CONTROL: 0x00008407 (locked: pkg-cstate-limit=7: unlimited, automatic-c-state-conversion=off)

with this output:

 MSR_PKG_CST_CONFIG_CONTROL: 0x00008407 (locked, pkg-cstate-limit=7 (unlimited), automatic-c-state-conversion=off)

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2018-06-01 17:15:08 -04:00
Artem Bityutskiy ac980e1357 tools/power turbostat: dump BDX, SKX automatic C-state conversion bit
BDX and SKX have a bit that tells them to PROMOTE shallow
C-states requests to MWAIT(C6).  It is generally a BIOS bug
if this bit is set.  As we have encountered that BIOS bug,
let's print this bit in turbostat debug output.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2018-06-01 17:15:08 -04:00
Len Brown 733ef0f8e7 tools/power turbostat: do not hard-code 25MHz crystal on SKX
Some SKX use a 24 MHz crystal, so do not hard code 25 MHz.

Also, SKX crystal is not exact, because SKX uses an EMI reduction
circuit that costs a fraction of a percent.

Signed-off-by: Len Brown <len.brown@intel.com>
2018-06-01 17:15:08 -04:00
Len Brown 46c2797826 tools/power turbostat: fix possible sprintf buffer overflow
Signed-off-by: Len Brown <len.brown@intel.com>
2018-06-01 17:14:56 -04:00
Len Brown fd3933ca7b tools/power turbostat: fix MSR_IA32_MISC_ENABLE MWAIT printout
MSR_IA32_MISC_ENABLE[18] is the MWAIT ENABLE bit, not DISABLE bit...

so

MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EIST No-MWAIT PREFETCH TURBO)

should print as:

MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EIST MWAIT PREFETCH TURBO)

Signed-off-by: Len Brown <len.brown@intel.com>
2018-06-01 12:13:06 -04:00
Artem Bityutskiy 47936f944e tools/power turbostat: fix printing on input
The recent patch that implements table printing on a keypress introduced a
regression - turbostat prints the table almost continuously if it is run from a
daemon program.

The problem is also easy to reproduce like this:

echo | turbostat

The reason is that we cannot assume that stdin is always a TTY. It can be many
things.

This patch adds fixes the problem by limiting the new keypress functionality to
TTYs only. If stdin is not a TTY, we just sleep for the full interval time.

While on it, clean-up 'do_sleep()' to return no value, as callers do not expect
that anyway.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2018-06-01 12:13:05 -04:00
Len Brown b9ad8ee0da tools/power turbostat: end current interval upon newline input
In turbostat interval mode, a newline typed on standard input
will now conclude the current interval.  Data will immediately
be collected and printed for that interval, and the next interval
will be started.

This is similar to the recently added SIGUSR1 feature.
But that is for use by programs, while this is for interactive use.

Signed-off-by: Len Brown <len.brown@intel.com>
2018-06-01 12:13:05 -04:00
Len Brown 072119606a tools/power turbostat: on SIGUSR1: sample, print and continue
Interval-mode turbostat now catches and discards SIGUSR1.

Thus, SIGUSR1 can be used to tell turbostat to cut short
the current measurement interval.  Turbostat will then start
the next measurement interval using the regular interval length.

This can be used to give turbostat variable intervals.
Invoke turbostat with --interval LARGE_NUMBER_SEC
and have a program that has permission to send it a SIGUSR1
always before LARGE_NUMBER_SEC expires.

It may also be useful to use "--enable Time_Of_Day_Seconds"
to observe the actual interval length.

Signed-off-by: Len Brown <len.brown@intel.com>
2018-06-01 12:13:04 -04:00
Len Brown 8aa2ed0b28 tools/power turbostat: on SIGINT: sample, print and exit
When running in interval-mode, catch interrupts
and print a final data record before exiting.

Signed-off-by: Len Brown <len.brown@intel.com>
2018-06-01 12:13:04 -04:00
Len Brown 3f44a5c62b tools/power turbostat: add --enable Time_Of_Day_Seconds
Add a Time_Of_Day_Seconds column showing when measurement
for each row was completed.  Units are [sec.subsec] since Epoch,
as reported by gettimeofday(2).

While useful to correlate turbostat output with other tools,
this built-in column is disabled, by default.

Add the "--enable" option to enable such disabled-by-default
built-in columns:

"--enable Time_Of_Day_Seconds"
"--enable usec"

"--enable all", will enable all disabled-by-defauilt built-in counters.

When "--debug" is used, all disabled-by-default columns are enabled,
unless explicitly skipped using "--hide"

Signed-off-by: Len Brown <len.brown@intel.com>
2018-06-01 12:13:04 -04:00
Artem Bityutskiy 2085e12441 tools/power turbostat: fix Skylake Xeon package C-state display
Turbostat neglects to display all package C-states for some Skylake Xeon BIOS configurations.

This is due to a typo in the table decoding MSR_PKG_CST_CONFIG_CONTROL (0x000000e2)

Here we fix that typo, according to Intel SDM, vol 4, Table 2-41 -
"MSRs Supported by Intel® Xeon® Processor Scalable Family with DisplayFamily_DisplayModel 06_55H".

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2018-06-01 12:13:03 -04:00
Abhishek Goel f9652d5cae cpupower : Fix header name to read idle state name
The names of the idle states in the output of cpupower monitor command are
truncated to 4 characters. On POWER9, this creates ambiguity as the states
are named "stop0", "stop1", etc.

root:~# cpupower monitor
              |Idle_Stats
PKG |CORE|CPU | snoo | stop | stop | stop | stop | stop | stop
   0|   0|   0|  0.00|  0.00|  0.00|  0.00|  0.00|  0.00|  1.90
   0|   0|   1|  0.00|  0.00|  0.00|  0.00|  0.00|  0.00|  0.00
   0|   0|   2|  0.00|  0.00|  0.00|  0.00|  0.00|  0.00|  0.00
   0|   0|   3|  0.00|  0.00|  0.00|  0.00|  0.00|  0.00|  0.00

This patch modifies the output to print the state name that results in a
legible output. The names will be printed with atmost 1 padding in left.

root:~# cpupower monitor
              | Idle_Stats
 PKG|CORE| CPU|snooze|stop0L| stop0|stop1L| stop1|stop2L| stop2
   0|   0|   0|  0.00|  0.00|  0.00|  0.00|  0.00|  0.00|  0.72
   0|   0|   1|  0.00|  0.00|  0.00|  0.00|  0.00|  0.00|  0.00
   0|   0|   2|  0.00|  0.00|  0.00|  0.00|  0.00|  0.00|  0.00
   0|   0|   3|  0.00|  0.00|  0.00|  0.00|  0.00|  0.00|  0.00

This patch does not affect the output for intel.
Output for intel before applying the patch:

root:~# cpupower monitor
    |Idle_Stats
CPU | POLL | C1-S | C1E- | C3-S | C6-S | C7s- | C8-S | C9-S | C10-
   0|  0.00|  0.14|  0.39|  0.35|  7.41|  0.00| 17.67|  1.01| 70.03
   2|  0.00|  0.19|  0.47|  0.10|  6.50|  0.00| 29.66|  2.17| 58.07
   1|  0.00|  0.11|  0.50|  1.50|  9.11|  0.18| 18.19|  0.40| 66.63
   3|  0.00|  0.67|  0.42|  0.03|  5.84|  0.00| 12.58|  0.77| 77.14

Output for intel after applying the patch:

root:~# cpupower monitor
    | Idle_Stats
 CPU| POLL | C1-S | C1E- | C3-S | C6-S | C7s- | C8-S | C9-S | C10-
   0|  0.03|  0.33|  1.01|  0.27|  3.03|  0.00| 19.18|  0.00| 71.24
   2|  0.00|  1.58|  0.58|  0.42|  8.55|  0.09| 21.11|  0.99| 63.32
   1|  0.00|  1.26|  0.88|  0.43|  9.00|  0.02|  7.78|  4.65| 71.91
   3|  0.00|  0.30|  0.42|  0.06| 13.62|  0.21| 30.29|  0.00| 52.45

Signed-off-by: Abhishek Goel <huntbag@linux.vnet.ibm.com>
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
2018-05-29 10:48:33 -06:00
Todd E Brandt ffbb95aa2d PM / tools: pm-graph: upgrade to v5.1
general changes:
 - make python dependent on version2 to enable clearlinux
 - upgrade dmesg error/warning extraction to be more detailed
 - enable logs generated from -cmd runs to be processed in gzip form
 - add notification on power mode entry failure into the timeline
 - add -battery option to show if battery is connected and its charge

summary changes (output of -summary):
 - add -genhtml option to regenerate missing timelines from logs found
 - add min/max/median/avg data to the summary page with links to the data
 - add highlight to minimum, maximum, and median tests
 - add result column to summary (pass or fail) with red highlight on fail
 - add issues column to summary with a list of dmesg err/warn/bugs

Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-05-27 12:03:50 +02:00
Doug Smythies 35459105de tools/power/x86/intel_pstate_tracer: Add optional setting of trace buffer memory allocation
Allow the user to override the default trace buffer memory allocation
by adding a command line option to override the default.

The patch also:

Adds a SIGINT (i.e. CTRL C exit) handler,
so that things can be cleaned up before exit.

Moves the postion of some other cleanup from after to
before the potential "No valid data to plot" exit.

Replaces all quit() calls with sys.exit, because
quit() is not supposed to be used in scripts.

Signed-off-by: Doug Smythies <dsmythies@telus.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-05-17 10:19:34 +02:00
Colin Ian King 9fd0c40451 cpupower: fix spelling mistake: "logilename" -> "logfilename"
Trivial fix to spelling mistake in dprintf message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
2018-05-10 10:24:30 -06:00
Jiri Slaby 7553961631 tools: power/acpi, revert to LD = gcc
Commit 7ed1c1901f (tools: fix cross-compile var clobbering) removed
setting of LD to $(CROSS_COMPILE)gcc. This broke build of acpica
(acpidump) in power/acpi:
 ld: unrecognized option '-D_LINUX'

The tools pass CFLAGS to the linker (incl. -D_LINUX), so revert this
particular change and let LD be $(CC) again. Note that the old behaviour
was a bit different, it used $(CROSS_COMPILE)gcc which was eliminated by
the commit 7ed1c1901f. We use $(CC) for that reason.

Fixes: 7ed1c1901f (tools: fix cross-compile var clobbering)
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: 4.16+ <stable@vger.kernel.org> # 4.16+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-05-04 11:24:22 +02:00
Linus Torvalds f2d285669a Power management updates for 4.17-rc1
- Modify the cpuidle poll state implementation to prevent CPUs from
    staying in the loop in there for excessive times (Rafael Wysocki).
 
  - Add Intel Cannon Lake chips support to the RAPL power capping
    driver (Joe Konno).
 
  - Add reference counting to the device links handling code in the
    PM core (Lukas Wunner).
 
  - Avoid reconfiguring GPEs on suspend-to-idle in the ACPI system
    suspend code (Rafael Wysocki).
 
  - Allow devices to be put into deeper low-power states via ACPI
    if both _SxD and _SxW are missing (Daniel Drake).
 
  - Reorganize the core ACPI suspend-to-idle wakeup code to avoid a
    keyboard wakeup issue on Asus UX331UA (Chris Chiu).
 
  - Prevent the PCMCIA library code from aborting suspend-to-idle due
    to noirq suspend failures resulting from incorrect assumptions
    (Rafael Wysocki).
 
  - Add coupled cpuidle supprt to the Exynos3250 platform (Marek
    Szyprowski).
 
  - Add new sysfs file to make it easier to specify the image storage
    location during hibernation (Mario Limonciello).
 
  - Add sysfs files for collecting suspend-to-idle usage and time
    statistics for CPU idle states (Rafael Wysocki).
 
  - Update the pm-graph utilities (Todd Brandt).
 
  - Reduce the kernel log noise related to reporting Low-power Idle
    constraings by the ACPI system suspend code (Rafael Wysocki).
 
  - Make it easier to distinguish dedicated wakeup IRQs in the
    /proc/interrupts output (Tony Lindgren).
 
  - Add the frequency table validation in cpufreq to the core and
    drop it from a number of cpufreq drivers (Viresh Kumar).
 
  - Drop "cooling-{min|max}-level" for CPU nodes from a couple of
    DT bindings (Viresh Kumar).
 
  - Clean up the CPU online error code path in the cpufreq core
    (Viresh Kumar).
 
  - Fix assorted issues in the SCPI, CPPC, mediatek and tegra186
    cpufreq drivers (Arnd Bergmann, Chunyu Hu, George Cherian,
    Viresh Kumar).
 
  - Drop memory allocation error messages from a few places in
    cpufreq and cpuildle drivers (Markus Elfring).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJawgTUAAoJEILEb/54YlRxI48QALc6IUfj/O+gLAWAf8qHk+8V
 eLn9E1NrZXUtNMNYItBcgZfuMImIj7MC5qRo/BhzYdd0VyUzFYEyd9liUVFBDEXA
 SH65jyjRrXORKfLrSP5H8lcCdckTFXfxzonVFN2n4l7Gdv540UFuqloU+vS4Wrfp
 wMg9UvKRxr+7LwOI4q2sMFtB8Uki+lySY5UECqRIKUIJKIH6RPo3m73Kps7kw8kU
 c2RCU8w/9PoomPaEjvwZ0vT5lNrQXmBbC5hxcMzBHtLS0Cwb3xJsUB4w6niezdGY
 e+n6Vx7XeId7+Ujnn4praxUwyVq2wEirJccvAEgKFcZzjmGAXrHl8rOgMLvb3ugN
 P+ftkYk+Vizci9hmACeA1LGw4hN/dXMfephnezCsy9Q/QK8QPJV8XO0vxfyaQYhZ
 ie6SKcdZimFDzqd6oHLFftRou3imvq8RUvKTx2CR0KVkApnaDDiTeP5ay1Yd+UU3
 EomWe7/mxoSgJ9kB/9GlKifQXBof62/fbrWH0AdM1oliONbbOZcLqg5x4DZUmfTK
 hTAx3SSxMRZSlc4Zl1CzbrHnFKi9cRBYCs0tPdOSnAO2ZfCsOmokJE+ig5I8lZre
 SlaciUpG2Vvf7m61mVlrqLLos8T9rTVM2pqwsoxII7A+dFrWK3HpqoypEN/87tm7
 4/zjPF6LK2eTKL9WdTCk
 =6JC2
 -----END PGP SIGNATURE-----

Merge tag 'pm-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These update the cpuidle poll state definition to reduce excessive
  energy usage related to it, add new CPU ID to the RAPL power capping
  driver, update the ACPI system suspend code to handle some special
  cases better, extend the PM core's device links code slightly, add new
  sysfs attribute for better suspend-to-idle diagnostics and easier
  hibernation handling, update power management tools and clean up
  cpufreq quite a bit.

  Specifics:

   - Modify the cpuidle poll state implementation to prevent CPUs from
     staying in the loop in there for excessive times (Rafael Wysocki).

   - Add Intel Cannon Lake chips support to the RAPL power capping
     driver (Joe Konno).

   - Add reference counting to the device links handling code in the PM
     core (Lukas Wunner).

   - Avoid reconfiguring GPEs on suspend-to-idle in the ACPI system
     suspend code (Rafael Wysocki).

   - Allow devices to be put into deeper low-power states via ACPI if
     both _SxD and _SxW are missing (Daniel Drake).

   - Reorganize the core ACPI suspend-to-idle wakeup code to avoid a
     keyboard wakeup issue on Asus UX331UA (Chris Chiu).

   - Prevent the PCMCIA library code from aborting suspend-to-idle due
     to noirq suspend failures resulting from incorrect assumptions
     (Rafael Wysocki).

   - Add coupled cpuidle supprt to the Exynos3250 platform (Marek
     Szyprowski).

   - Add new sysfs file to make it easier to specify the image storage
     location during hibernation (Mario Limonciello).

   - Add sysfs files for collecting suspend-to-idle usage and time
     statistics for CPU idle states (Rafael Wysocki).

   - Update the pm-graph utilities (Todd Brandt).

   - Reduce the kernel log noise related to reporting Low-power Idle
     constraings by the ACPI system suspend code (Rafael Wysocki).

   - Make it easier to distinguish dedicated wakeup IRQs in the
     /proc/interrupts output (Tony Lindgren).

   - Add the frequency table validation in cpufreq to the core and drop
     it from a number of cpufreq drivers (Viresh Kumar).

   - Drop "cooling-{min|max}-level" for CPU nodes from a couple of DT
     bindings (Viresh Kumar).

   - Clean up the CPU online error code path in the cpufreq core (Viresh
     Kumar).

   - Fix assorted issues in the SCPI, CPPC, mediatek and tegra186
     cpufreq drivers (Arnd Bergmann, Chunyu Hu, George Cherian, Viresh
     Kumar).

   - Drop memory allocation error messages from a few places in cpufreq
     and cpuildle drivers (Markus Elfring)"

* tag 'pm-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (56 commits)
  ACPI / PM: Fix keyboard wakeup from suspend-to-idle on ASUS UX331UA
  cpufreq: CPPC: Use transition_delay_us depending transition_latency
  PM / hibernate: Change message when writing to /sys/power/resume
  PM / hibernate: Make passing hibernate offsets more friendly
  cpuidle: poll_state: Avoid invoking local_clock() too often
  PM: cpuidle/suspend: Add s2idle usage and time state attributes
  cpuidle: Enable coupled cpuidle support on Exynos3250 platform
  cpuidle: poll_state: Add time limit to poll_idle()
  cpufreq: tegra186: Don't validate the frequency table twice
  cpufreq: speedstep: Don't validate the frequency table twice
  cpufreq: sparc: Don't validate the frequency table twice
  cpufreq: sh: Don't validate the frequency table twice
  cpufreq: sfi: Don't validate the frequency table twice
  cpufreq: scpi: Don't validate the frequency table twice
  cpufreq: sc520: Don't validate the frequency table twice
  cpufreq: s3c24xx: Don't validate the frequency table twice
  cpufreq: qoirq: Don't validate the frequency table twice
  cpufreq: pxa: Don't validate the frequency table twice
  cpufreq: ppc_cbe: Don't validate the frequency table twice
  cpufreq: powernow: Don't validate the frequency table twice
  ...
2018-04-03 10:45:39 -07:00
Rafael J. Wysocki 103cf0e579 Merge branches 'pm-cpuidle' and 'pm-tools'
* pm-cpuidle:
  cpuidle: poll_state: Avoid invoking local_clock() too often
  PM: cpuidle/suspend: Add s2idle usage and time state attributes
  cpuidle: Enable coupled cpuidle support on Exynos3250 platform
  cpuidle: poll_state: Add time limit to poll_idle()
  ARM: cpuidle: Drop memory allocation error message from arm_idle_init_cpu()

* pm-tools:
  pm-graph: AnalyzeSuspend v5.0
  pm-graph: AnalyzeBoot v2.2
  pm-graph: config files and installer
2018-04-02 11:01:02 +02:00
Rafael J. Wysocki ae02168d78 Merge branch 'acpica'
* acpica: (21 commits)
  ACPICA: Update version to 20180313
  ACPICA: Cleanup/simplify module-level code support
  ACPICA: Events: add a return on failure from acpi_hw_register_read
  ACPICA: adding SPDX headers
  ACPICA: Rename a global for clarity, no functional change
  ACPICA: macros: fix ACPI_ERROR_NAMESPACE macro
  ACPICA: Change a compile-time option to a runtime option
  ACPICA: Remove calling of _STA from acpi_get_object_info()
  ACPICA: AML Debug Object: Don't ignore output of zero-length strings
  ACPICA: Fix memory leak on unusual memory leak
  ACPICA: Events: Dispatch GPEs after enabling for the first time
  ACPICA: Events: Add parallel GPE handling support to fix potential redundant _Exx evaluations
  ACPICA: Events: Stop unconditionally clearing ACPI IRQs during suspend/resume
  ACPICA: acpi: acpica: fix acpi operand cache leak in nseval.c
  ACPICA: Update version to 20180209
  ACPICA: Add option to disable Package object name resolution errors
  ACPICA: Integrate package handling with module-level code
  ACPICA: Revert "Fix for implicit result conversion for the To____ functions"
  ACPICA: Update for some debug output. No functional change
  ACPICA: Update error message, no functional change
  ...
2018-04-02 10:57:58 +02:00
Erik Schmauss 9585763888 ACPICA: adding SPDX headers
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-03-18 19:08:05 +01:00
Martin Kelly 7ed1c1901f tools: fix cross-compile var clobbering
Currently a number of Makefiles break when used with toolchains that
pass extra flags in CC and other cross-compile related variables (such
as --sysroot).

Thus we get this error when we use a toolchain that puts --sysroot in
the CC var:

  ~/src/linux/tools$ make iio
  [snip]
  iio_event_monitor.c:18:10: fatal error: unistd.h: No such file or directory
    #include <unistd.h>
             ^~~~~~~~~~

This occurs because we clobber several env vars related to
cross-compiling with lines like this:

  CC = $(CROSS_COMPILE)gcc

Although this will point to a valid cross-compiler, we lose any extra
flags that might exist in the CC variable, which can break toolchains
that rely on them (for example, those that use --sysroot).

This easily shows up using a Yocto SDK:

  $ . [snip]/sdk/environment-setup-cortexa8hf-neon-poky-linux-gnueabi

  $ echo $CC
  arm-poky-linux-gnueabi-gcc -march=armv7-a -mfpu=neon -mfloat-abi=hard
  -mcpu=cortex-a8
  --sysroot=[snip]/sdk/sysroots/cortexa8hf-neon-poky-linux-gnueabi

  $ echo $CROSS_COMPILE
  arm-poky-linux-gnueabi-

  $ echo ${CROSS_COMPILE}gcc
  krm-poky-linux-gnueabi-gcc

Although arm-poky-linux-gnueabi-gcc is a cross-compiler, we've lost the
--sysroot and other flags that enable us to find the right libraries to
link against, so we can't find unistd.h and other libraries and headers.
Normally with the --sysroot flag we would find unistd.h in the sdk
directory in the sysroot:

  $ find [snip]/sdk/sysroots -path '*/usr/include/unistd.h'
  [snip]/sdk/sysroots/cortexa8hf-neon-poky-linux-gnueabi/usr/include/unistd.h

The perf Makefile adds CC = $(CROSS_COMPILE)gcc if and only if CC is not
already set, and it compiles correctly with the above toolchain.

So, generalize the logic that perf uses in the common Makefile and
remove the manual CC = $(CROSS_COMPILE)gcc lines from each Makefile.

Note that this patch does not fix cross-compile for all the tools (some
have other bugs), but it does fix it for all except usb and acpi, which
still have other unrelated issues.

I tested both with and without the patch on native and cross-build and
there appear to be no regressions.

Link: http://lkml.kernel.org/r/20180107214028.23771-1-martin@martingkelly.com
Signed-off-by: Martin Kelly <martin@martingkelly.com>
Acked-by: Mark Brown <broonie@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Pali Rohar <pali.rohar@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Robert Moore <robert.moore@intel.com>
Cc: Lv Zheng <lv.zheng@intel.com>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Valentina Manea <valentina.manea.m@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-02-21 15:35:42 -08:00
Todd E Brandt 700abc90f0 pm-graph: AnalyzeSuspend v5.0
- add -cgskip option to reduce callgraph output size
- add -cgfilter option to focus on a list of devices
- add -result option for exporting batch test results
- removed all phoronix hooks, use -result to enable batch testing
- change -usbtopo to -devinfo, now prints all devices
- add -gzip option to read/write logs in gz format
- add -bufsize option to manually control ftrace buffer size
- add -sync option to run filesystem sync prior to test
- add -display option to enable/disable the display prior to test
- add -rs option to enable/disable runtime suspend on all devices for test
- add installed config files to search path
- add kernel error/warning links into the timeline
- fix callgraph trace to better handle interrupts
- include command string and kernel params in timeline output header

Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-02-21 23:56:22 +01:00
Todd E Brandt d83a76a8ec pm-graph: AnalyzeBoot v2.2
- add -cgskip option to reduce callgraph output size
- add -cgfilter option to focus on a list of devices
- add -result option for exporting batch test results
- removed all phoronix hooks, use -result to enable batch testing
- changed argument -f to match sleegraph, -f = -callgraph
- use -fstat for function status instead of -f
- add -verbose option to print out timeline stats and kernel options
- include command string and kernel params in timeline output header

Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-02-21 23:56:22 +01:00
Todd E Brandt a6fbdbb2b8 pm-graph: config files and installer
- name change: analyze_boot.py to bootgraph.py
- name change: analyze_suspend.py to sleepgraph.py
- added config files for easier sleepgraph usage
- added example.cfg which describes all config options
- added cgskip.txt definition for slimmer callgraphs

Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-02-21 23:56:22 +01:00
Bob Moore da6f8320d5 ACPICA: All acpica: Update copyrights to 2018
including tool signons.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-02-06 10:31:20 +01:00
Linus Torvalds 1a9a126b50 ACPI updates for v4.16-rc1
- Update the ACPICA kernel code to upstream revision 20171215 including:
    * Support for ACPI 6.0A changes in the NFIT table (Bob Moore).
    * Local 64-bit divide in string conversions (Bob Moore).
    * Fix for a regression in acpi_evaluate_object_type() (Bob Moore).
    * Fixes for memory leaks during package object resolution (Bob Moore).
    * Deployment of safe version of strncpy() (Bob Moore).
    * Debug and messaging updates (Bob Moore).
    * Support for PDTT, SDEV, TPM2 tables in iASL and tools (Bob Moore).
    * Null pointer dereference avoidance in Op and cleanups (Colin Ian King).
    * Fix for memory leak from building prefixed pathname (Erik Schmauss).
    * Coding style fixes, disassembler and compiler updates (Hanjun Guo,
      Erik Schmauss).
    * Additional PPTT flags from ACPI 6.2 (Jeremy Linton).
    * Fix for an off-by-one error in acpi_get_timer_duration() (Jung-uk Kim).
    * Infinite loop detection timeout and utilities cleanups (Lv Zheng).
    * Windows 10 version 1607 and 1703 OSI strings (Mario Limonciello).
 
  - Update ACPICA information in MAINTAINERS to reflect the current
    status of ACPICA maintenance and rename a local variable in one
    function to match the corresponding upstream code (Rafael Wysocki).
 
  - Clean up ACPI-related initialization on x86 (Andy Shevchenko).
 
  - Add support for Intel Merrifield to the ACPI GPIO code (Andy
    Shevchenko).
 
  - Clean up ACPI PMIC drivers (Andy Shevchenko, Arvind Yadav).
 
  - Fix the ACPI Generic Event Device (GED) driver to free IRQs on
    shutdown and clean up the PCI IRQ Link driver (Sinan Kaya).
 
  - Make the GHES code call into the AER driver on all errors and
    clean up the ACPI APEI code (Colin Ian King, Tyler Baicar).
 
  - Make the IA64 ACPI NUMA code parse all SRAT entries (Ganapatrao
    Kulkarni).
 
  - Add a lid switch blacklist to the ACPI button driver and make it
    print extra debug messages on lid events (Hans de Goede).
 
  - Add quirks for Asus GL502VSK and UX305LA to the ACPI battery
    driver and clean it up somewhat (Bjørn Mork, Kai-Heng Feng).
 
  - Add device link for CHT SD card dependency on I2C to the ACPI
    LPSS (Intel SoCs) driver and make it avoid creating platform
    device objects for devices without MMIO resources (Adrian Hunter,
    Hans de Goede).
 
  - Fix the ACPI GPE mask kernel command line parameter handling
    (Prarit Bhargava).
 
  - Fix the handling of (incorrectly exposed) backlight interfaces
    without LCD (Hans de Goede).
 
  - Fix the usage of debugfs_create_*() in the ACPI EC driver (Geert
    Uytterhoeven).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJaY/BrAAoJEILEb/54YlRxR10P/1dVxfhLiGBrwKzA1urr71Vg
 LH6ZdlIlihyu9a1PZHjfO72IuZCMSkSnoJUPJPFK6FNA0hIDqsP+hC8gcknCxnAU
 i6r2ZzQesOzzjGblpASvdDg0GkYe9r6sHpUQ0xW/hnijamforflGveW1bagbnFuI
 gvT6m6+lMJwBd0NrWhQiTJmTuSTwgJBXDA+HhlDnGd6ziVfHPaCxon4L9GQfVhsb
 jbOI/kBjnEKoN1dBbEAcSpgzklVUXUj4x2NHUMCyvKOJyKG/F7Ycbghux9t3C+ej
 1T0XJAU7K3hkmstWkWwylqVZt3UW47xiJKe6K2Z5p3CaJx0cnI18C+g7x/IcRGiA
 +J/Uco+xeMa8yqYV96j+AJexpUDu7fYo6B4nRZ/K+MjWifboeSLKn8PHLKhqYn6k
 sV3s0dUf8SJK5pTu+IkAgzDzsw/uJAI8Rylmig9ea12/nIt6EH3Kero31hi3lkoN
 Y2rdi9MIqFIj2tX42047Y/q2UEFkMWGO3q8fLkXRvWPwnwStHDDFVj/kd19CWcTy
 B1kNxNQQS/Q9u0uoW4rIHW6ipEU2sqyt/tvVQnmJlVP0HuO++uIO7h3mrBDxhSJS
 zQF4qtusbMHC85BHrozmGFECN8Cex8DYSUTO/yCoBvMlMxJ7UlSt25TBN+SzmnOV
 H1LhVRcFh1488lXzuM+u
 =/eCQ
 -----END PGP SIGNATURE-----

Merge tag 'acpi-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "The majority of this is an update of the ACPICA kernel code to
  upstream revision 20171215 with a cosmetic change and a maintainers
  information update on top of it.

  The rest is mostly some minor fixes and cleanups in the ACPI drivers
  and cleanups to initialization on x86.

  Specifics:

   - Update the ACPICA kernel code to upstream revision 20171215 including:
      * Support for ACPI 6.0A changes in the NFIT table (Bob Moore)
      * Local 64-bit divide in string conversions (Bob Moore)
      * Fix for a regression in acpi_evaluate_object_type() (Bob Moore)
      * Fixes for memory leaks during package object resolution (Bob
        Moore)
      * Deployment of safe version of strncpy() (Bob Moore)
      * Debug and messaging updates (Bob Moore)
      * Support for PDTT, SDEV, TPM2 tables in iASL and tools (Bob
        Moore)
      * Null pointer dereference avoidance in Op and cleanups (Colin Ian
        King)
      * Fix for memory leak from building prefixed pathname (Erik
        Schmauss)
      * Coding style fixes, disassembler and compiler updates (Hanjun
        Guo, Erik Schmauss)
      * Additional PPTT flags from ACPI 6.2 (Jeremy Linton)
      * Fix for an off-by-one error in acpi_get_timer_duration()
        (Jung-uk Kim)
      * Infinite loop detection timeout and utilities cleanups (Lv
        Zheng)
      * Windows 10 version 1607 and 1703 OSI strings (Mario
        Limonciello)

   - Update ACPICA information in MAINTAINERS to reflect the current
     status of ACPICA maintenance and rename a local variable in one
     function to match the corresponding upstream code (Rafael Wysocki)

   - Clean up ACPI-related initialization on x86 (Andy Shevchenko)

   - Add support for Intel Merrifield to the ACPI GPIO code (Andy
     Shevchenko)

   - Clean up ACPI PMIC drivers (Andy Shevchenko, Arvind Yadav)

   - Fix the ACPI Generic Event Device (GED) driver to free IRQs on
     shutdown and clean up the PCI IRQ Link driver (Sinan Kaya)

   - Make the GHES code call into the AER driver on all errors and clean
     up the ACPI APEI code (Colin Ian King, Tyler Baicar)

   - Make the IA64 ACPI NUMA code parse all SRAT entries (Ganapatrao
     Kulkarni)

   - Add a lid switch blacklist to the ACPI button driver and make it
     print extra debug messages on lid events (Hans de Goede)

   - Add quirks for Asus GL502VSK and UX305LA to the ACPI battery driver
     and clean it up somewhat (Bjørn Mork, Kai-Heng Feng)

   - Add device link for CHT SD card dependency on I2C to the ACPI LPSS
     (Intel SoCs) driver and make it avoid creating platform device
     objects for devices without MMIO resources (Adrian Hunter, Hans de
     Goede)

   - Fix the ACPI GPE mask kernel command line parameter handling
     (Prarit Bhargava)

   - Fix the handling of (incorrectly exposed) backlight interfaces
     without LCD (Hans de Goede)

   - Fix the usage of debugfs_create_*() in the ACPI EC driver (Geert
     Uytterhoeven)"

* tag 'acpi-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (62 commits)
  ACPI/PCI: pci_link: reduce verbosity when IRQ is enabled
  ACPI / LPSS: Do not instiate platform_dev for devs without MMIO resources
  ACPI / PMIC: Convert to use builtin_platform_driver() macro
  ACPI / x86: boot: Propagate error code in acpi_gsi_to_irq()
  ACPICA: Update version to 20171215
  ACPICA: trivial style fix, no functional change
  ACPICA: Fix a couple memory leaks during package object resolution
  ACPICA: Recognize the Windows 10 version 1607 and 1703 OSI strings
  ACPICA: DT compiler: prevent error if optional field at the end of table is not present
  ACPICA: Rename a global variable, no functional change
  ACPICA: Create and deploy safe version of strncpy
  ACPICA: Cleanup the global variables and update comments
  ACPICA: Debugger: fix slight indentation issue
  ACPICA: Fix a regression in the acpi_evaluate_object_type() interface
  ACPICA: Update for a few debug output statements
  ACPICA: Debug output, no functional change
  ACPI: EC: Fix debugfs_create_*() usage
  ACPI / video: Default lcd_only to true on Win8-ready and newer machines
  ACPI / x86: boot: Don't setup SCI on HW-reduced platforms
  ACPI / x86: boot: Use INVALID_ACPI_IRQ instead of 0 for acpi_sci_override_gsi
  ...
2018-01-29 10:17:53 -08:00
Rafael J. Wysocki 2a2bafcb3b Merge branch 'acpica'
* acpica: (40 commits)
  ACPICA: Update version to 20171215
  ACPICA: trivial style fix, no functional change
  ACPICA: Fix a couple memory leaks during package object resolution
  ACPICA: Recognize the Windows 10 version 1607 and 1703 OSI strings
  ACPICA: DT compiler: prevent error if optional field at the end of table is not present
  ACPICA: Rename a global variable, no functional change
  ACPICA: Create and deploy safe version of strncpy
  ACPICA: Cleanup the global variables and update comments
  ACPICA: Debugger: fix slight indentation issue
  ACPICA: Fix a regression in the acpi_evaluate_object_type() interface
  ACPICA: Update for a few debug output statements
  ACPICA: Debug output, no functional change
  ACPICA: Update information in MAINTAINERS
  ACPICA: Rename variable to match upstream
  ACPICA: Update version to 20171110
  ACPICA: ACPI 6.2: Additional PPTT flags
  ACPICA: Update linkage for get mutex name interface
  ACPICA: Update mutex error messages, no functional change
  ACPICA: Debugger: add "background" command for method execution
  ACPICA: Small typo fix, no functional change
  ...
2018-01-18 03:01:07 +01:00
Doug Smythies fbe313884d tools/power/x86/intel_pstate_tracer: Free the trace buffer memory
The trace buffer memory should be, mostly, freed after
the buffer has been output.

This patch is required before a future patch that will allow
the user to override the default, and specify the trace buffer
memory allocation as a command line option.

Signed-off-by: Doug Smythies <dsmythies@telus.net>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-01-10 01:12:04 +01:00
Laura Abbott 0e96a0c83f cpupower: Remove FSF address
Checkpatch in the kernel now complains about having the FSF address
in comments. Other tools such as rpmlint are now starting to do the
same thing. Remove the FSF address to reduce warnings on multiple tools.

Signed-off-by: Laura Abbott <labbott@redhat.com>
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-12-15 08:27:39 -07:00
Linus Torvalds 0cf710f8c6 Power management fixes for v4.15-rc2
These add missing module information to the Mediatek cpufreq driver
 module (Jesse Chan), fix config dependencies for the Loongson cpufreq
 driver (James Hogan) and fix two issues related to CPU offline in
 the cpupower utility (Abhishek Goel).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJaIAeoAAoJEILEb/54YlRx4wMP/1qqVZqbdIjABZcAzyWy92Rf
 dj78h3JzMY89YtegfQd4dgg+p5/JGvRMhvq7Hroz3pLryRA1EmTzLOs86453eyqp
 VY6B9ER+IaFyaW9dbDrVMpKcvaJuFgX7n2FPfsDzFY4E710NTss9kBjJGbYv+0MD
 CSy0QoK8V6erFrhToxKJsHkvkJaM+zZwCFGU36pVRz5xly4GylgWQ6rsbqlKFVwd
 6kHIm4xQ5e16eE8KROQPQwFk5myEhCg28JwpdHPwGLOwdBGNuoDrwxmIB/56pv/k
 MDUaS98YBcPLgVAjKHAqfL7FsFeli0Agxv9Q9NfkNjg7PSPizDSgJlmoQAnptrka
 WkDQez0Fz3VoTVteaGn9cdpZCSZ+Jr5hevKqMSBl/1EkxsFhcQOn4uLln52ufCsh
 9vUIjmmVc7CGWkxrHcmlyrTpWRVHuRDFw8ybzkbcejZDCs/wXTNIOhzZSyga0Fc5
 LE9+ogvzRLLjSth3PIStX0L2M8VrFoGf4kwRrpOBO/agUJjZFz2ON7mEQJkoxKjm
 iB9L+NdczfJW2vh89NFFlBYS9Gz7XrBTW5Bvc5962hGXgPvvq23yJ/3naGw+JTU1
 nPTaHBzw8S3K+ASTk+P98EPqh3kb2ZAobmR4I6UcJDqfWRj43xIkvRsArJ50H/S2
 odzEKDOggkdeinERbOq8
 =ZzZK
 -----END PGP SIGNATURE-----

Merge tag 'pm-4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:

 - add missing module information to the Mediatek cpufreq driver module
   (Jesse Chan)

 - fix config dependencies for the Loongson cpufreq driver (James Hogan)

 - fix two issues related to CPU offline in the cpupower utility
   (Abhishek Goel).

* tag 'pm-4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: mediatek: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
  cpufreq: Add Loongson machine dependencies
  cpupower : Fix cpupower working when cpu0 is offline
  cpupowerutils: bench - Fix cpu online check
2017-11-30 18:45:55 -05:00
Bob Moore 90adf776a9 ACPICA: Tools: Deploy -vd option (build date/time) across all tools
ACPICA commit 336131640a1574b86240b32eca3150195f9270d6

Common option for all tools.

Link: https://github.com/acpica/acpica/commit/33613164
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-11-27 01:20:29 +01:00
Rafael J. Wysocki 43d2d3b56d linux-cpupower-4.15-rc2
This update consists of fixes to tool's handling of offline cpus.
 The first patch fixes the tool to find information on the cpu it
 is running on, instead of always looking for cpu0 and failing if
 cpu0 happens to be offline.
 
 The second patch fixes the incorrect check for offline cpu status.
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABCAAGBQJaDyPgAAoJEAsCRMQNDUMcw88P/1LYlu4RXoVzReu14yy8U4XK
 bWQdc2uAGu0fdTf9olrk4OsCGP4Hbs3nDGf1VaOYWU2Gn87DhpiIWuJ0See0X4Gs
 6i7U8kLWRVtbJT25pvt5hNgW7udtKkhpXpfJOSQCKR3qB8rpvX6b+ueBmyCAHvuQ
 i5AnN9oiZopUQiCeXYDqO04CF/hr9aKRJQUBgeSjIiGeGvwOqCUWZrsVuUCR17Xj
 Bi5MG5qI/ufMYuy7FRPxMgne30OIA5y2axVTuhxLhR5mg+KXennMCltv8xQMeRUM
 e/dqKDsyXr1a4tq5u91j88L+yZrFYP3oS2oO97RpGhD7wjcHbrf17JW0cl4BVm3q
 u6Lpg22HdYMcyMZkVqTcP181PX9+Dbn/3vvpHWpNEqMg/LMUrrGa442nqtOZTB5Y
 flqpbhsDmaKMvIqqW7b0D8tbm1JKBRETqUaFeaGXcpAtzlWS9+4djdQiGpRu9JEf
 Q8YXazIrm9EYzKcNPor0m7ItxIxPWwD5xMU+jF3mqdM08zbU//he48hysryqtnbD
 cHpDpLwO6uaXtg+wEe+30mFGd2urvBTV0Y6pd0ok2FTnJRTY/OY9c6BhltUhpvBO
 zgf8AKhFBULrt/l/x0OQ0xJ7s9kfEDSnoDtr8sNM9Poc/2BajCSanWKRmzSmqNnZ
 rC9m7FKfJkQ8Lm/i0hkW
 =Xe5t
 -----END PGP SIGNATURE-----

Merge tag 'linux-cpupower-4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux

Pull cpupower utility fixes for 4.15-rc2 from Shuah Khan:

"This update consists of fixes to tool's handling of offline cpus.

The first patch fixes the tool to find information on the cpu it
is running on, instead of always looking for cpu0 and failing if
cpu0 happens to be offline.

The second patch fixes the incorrect check for offline cpu status."

* tag 'linux-cpupower-4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux:
  cpupower : Fix cpupower working when cpu0 is offline
  cpupowerutils: bench - Fix cpu online check
2017-11-18 15:05:31 +01:00
Bjørn Forsman 16f8259ca7 kbuild: /bin/pwd -> pwd
Most places use pwd and rely on $PATH lookup. Moving the remaining
absolute path /bin/pwd users over for consistency.

Also, a reason for doing /bin/pwd -> pwd instead of the other way around
is because I believe build systems should make little assumptions on
host filesystem layout. Case in point, we do this kind of patching
already in NixOS.

Ref. commit 028568d84d
("kbuild: revert $(realpath ...) to $(shell cd ... && /bin/pwd)").

Signed-off-by: Bjørn Forsman <bjorn.forsman@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-11-18 11:32:27 +09:00
Abhishek Goel dbdc468f35 cpupower : Fix cpupower working when cpu0 is offline
cpuidle_monitor used to assume that cpu0 is always online which is not
a valid assumption on POWER machines. This patch fixes this by getting
the cpu on which the current thread is running, instead of always using
cpu0 for monitoring which may not be online.

Signed-off-by: Abhishek Goel <huntbag@linux.vnet.ibm.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-11-15 08:37:42 -07:00
Abhishek Goel 53d1cd6b12 cpupowerutils: bench - Fix cpu online check
cpupower_is_cpu_online was incorrectly checking for 0. This patch fixes
this by checking for 1 when the cpu is online.

Signed-off-by: Abhishek Goel <huntbag@linux.vnet.ibm.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-11-15 08:37:35 -07:00
Linus Torvalds 04ed510988 ACPI updates for v4.15-rc1
- Update the ACPICA code to upstream revision 20170831 including
    * PDTT table header support (Bob Moore).
    * Cleanup and extension of internal string-to-integer conversion
      functions (Bob Moore).
    * Support for 64-bit hardware accesses (Lv Zheng).
    * ACPI PM Timer code adjustment to deal with 64-bit return values
      of acpi_hw_read() (Bob Moore).
    * Support for deferred table verification in acpiexec (Lv Zheng).
 
  - Fix APEI to use the fixmap instead of ioremap_page_range() which
    cannot work correctly the way the code in there attempted to use
    it and drop some code that's not necessary any more after that
    change (James Morse).
 
  - Clean up the APEI support code and make it use 64-bit timestamps
    (Arnd Bergmann, Dongjiu Geng, Jan Beulich).
 
  - Add operation region driver for TI PMIC TPS68470 (Rajmohan Mani).
 
  - Add support for PCC subspace IDs to the ACPI CPPC driver (George
    Cherian).
 
  - Fix an ACPI EC driver regression related to the handling of EC
    events during the "noirq" phases of system suspend/resume (Lv
    Zheng).
 
  - Delay the initialization of the lid state in the ACPI button
    driver to fix issues appearing on some systems (Hans de Goede).
 
  - Extend the KIOX000A "device always present" quirk to cover all
    affected BIOS versions (Hans de Goede).
 
  - Clean up some code in the ACPI core and drivers (Colin Ian King,
    Gustavo Silva).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJaCg33AAoJEILEb/54YlRxTe0P/jEFsSXCmAussc0DoqcXuep/
 GEzsMHZLBU59oVTVqiji19vkVEiJldANmnFniMTr3sJ52QSgLQH4Wtv5QGzTCmUq
 C3VzfSye5QS726f/Fk4tgZIFy5WL3EzweEbPmrcsFQvShU/vNHzvGUNcnPy9IWXE
 O+kISx8YTB6z4laa9cJLjTMEuDgRUpyubb9dZBBvXC7RIuHstk8+GyLvvPImKGBL
 sk5PNChP0WGLLSG7BayOUG3/7Q2RaFpbgjCos2dounPAJW5TXmMJUsZ0gvtXy0Z8
 ZoPmqgPlYYlHVBlpy7oO4WGFLYJ+KZ+w27aEN1n0C3n9BU9AqWBKw8nkxfpCgPxy
 3p2dwuh1igHsCAEVaaGjw02bewszIdl68q3ZfC7xujE401SG+Py7VCnTAbkffC0M
 nXP8RlGg4V3blwvNM47g3Hh8VG7vJgsW2fvBdSQa/Za7ML8aqxkvtk1BzhDCN19X
 tIqn9RMLWoPSnrEdqSi4HK88iHRvagPJncemFyDQl4LE+V5rWBCUqNumLLjL2i4L
 uBxqlK3tBVWKM0iKmISDHpjUZHaqM3g/Lmyo3aExWTog06OB81hMG3b57RrbWj9t
 1PIbQOtAazhqM4Scdg1mWTaRNR1p40V9RyA6YvqTIbjDRDPkxEfIUECvRBFwgWkd
 JtFkKwR65EFkH8bGNXQi
 =7mrU
 -----END PGP SIGNATURE-----

Merge tag 'acpi-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These update ACPICA to upstream revision 20170831, fix APEI to use the
  fixmap instead of ioremap_page_range(), add an operation region driver
  for TI PMIC TPS68470, add support for PCC subspace IDs to the ACPI
  CPPC driver, fix a few assorted issues and clean up some code.

  Specifics:

   - Update the ACPICA code to upstream revision 20170831 including
      * PDTT table header support (Bob Moore).
      * Cleanup and extension of internal string-to-integer conversion
        functions (Bob Moore).
      * Support for 64-bit hardware accesses (Lv Zheng).
      * ACPI PM Timer code adjustment to deal with 64-bit return values
        of acpi_hw_read() (Bob Moore).
      * Support for deferred table verification in acpiexec (Lv Zheng).

   - Fix APEI to use the fixmap instead of ioremap_page_range() which
     cannot work correctly the way the code in there attempted to use it
     and drop some code that's not necessary any more after that change
     (James Morse).

   - Clean up the APEI support code and make it use 64-bit timestamps
     (Arnd Bergmann, Dongjiu Geng, Jan Beulich).

   - Add operation region driver for TI PMIC TPS68470 (Rajmohan Mani).

   - Add support for PCC subspace IDs to the ACPI CPPC driver (George
     Cherian).

   - Fix an ACPI EC driver regression related to the handling of EC
     events during the "noirq" phases of system suspend/resume (Lv
     Zheng).

   - Delay the initialization of the lid state in the ACPI button driver
     to fix issues appearing on some systems (Hans de Goede).

   - Extend the KIOX000A "device always present" quirk to cover all
     affected BIOS versions (Hans de Goede).

   - Clean up some code in the ACPI core and drivers (Colin Ian King,
     Gustavo Silva)"

* tag 'acpi-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (24 commits)
  ACPI: Mark expected switch fall-throughs
  ACPI / LPSS: Remove redundant initialization of clk
  ACPI / CPPC: Make CPPC ACPI driver aware of PCC subspace IDs
  mailbox: PCC: Move the MAX_PCC_SUBSPACES definition to header file
  ACPI / sysfs: Make function param_set_trace_method_name() static
  ACPI / button: Delay acpi_lid_initialize_state() until first user space open
  ACPI / EC: Fix regression related to triggering source of EC event handling
  APEI / ERST: use 64-bit timestamps
  ACPI / APEI: Remove arch_apei_flush_tlb_one()
  arm64: mm: Remove arch_apei_flush_tlb_one()
  ACPI / APEI: Remove ghes_ioremap_area
  ACPI / APEI: Replace ioremap_page_range() with fixmap
  ACPI / APEI: remove the unused dead-code for SEA/NMI notification type
  ACPI / x86: Extend KIOX000A quirk to cover all affected BIOS versions
  ACPI / APEI: adjust a local variable type in ghes_ioremap_pfn_irq()
  ACPICA: Update version to 20170831
  ACPICA: Update acpi_get_timer for 64-bit interface to acpi_hw_read
  ACPICA: String conversions: Update to add new behaviors
  ACPICA: String conversions: Cleanup/format comments. No functional changes
  ACPICA: Restructure/cleanup all string-to-integer conversion functions
  ...
2017-11-13 20:08:22 -08:00
Rafael J. Wysocki 990a848d53 Merge branches 'pm-devfreq' and 'pm-tools'
* pm-devfreq:
  PM / devfreq: Define the constant governor name
  PM / devfreq: Remove unneeded conditional statement
  PM / devfreq: Show the all available frequencies
  PM / devfreq: Change return type of devfreq_set_freq_table()
  PM / devfreq: Use the available min/max frequency
  Revert "PM / devfreq: Add show_one macro to delete the duplicate code"
  PM / devfreq: Set min/max_freq when adding the devfreq device

* pm-tools:
  tools/power/cpupower: add libcpupower.so.0.0.1 to .gitignore
  tools/power/cpupower: Add 64 bit library detection
  MAINTAINERS: add maintainer for tools/power/cpupower
  cpupower: Fix no-rounding MHz frequency output
2017-11-13 01:41:39 +01:00
Rafael J. Wysocki 60764eb379 Merge branch 'acpica'
* acpica:
  ACPICA: Update version to 20170831
  ACPICA: Update acpi_get_timer for 64-bit interface to acpi_hw_read
  ACPICA: String conversions: Update to add new behaviors
  ACPICA: String conversions: Cleanup/format comments. No functional changes
  ACPICA: Restructure/cleanup all string-to-integer conversion functions
  ACPICA: Header support for the PDTT ACPI table
  ACPICA: acpiexec: Add testability of deferred table verification
  ACPICA: Hardware: Enable 64-bit support of hardware accesses
2017-11-13 01:36:58 +01:00
Prarit Bhargava 69b6f8a9b7 tools/power/cpupower: add libcpupower.so.0.0.1 to .gitignore
Commit ac5a181d06 ("cpupower: Add cpuidle parts into library") added
libcpupower.so.0.0.1 which should be hidden from git commands.  This
patch changes the ignore to all libcpupower.so.* .

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-11-09 10:52:22 -07:00
Prarit Bhargava d4dbfa4bb4 tools/power/cpupower: Add 64 bit library detection
The kernel-tools-lib rpm is installing the library to /usr/lib64, and not
/usr/lib as the cpupower Makefile is doing in the kernel tree.  This
resulted in a conflict between the two libraries.  After looking at how
other tools installed libraries, and looking at the perf code in
tools/perf it looks like installing to /usr/lib64 for 64-bit arches is the
correct thing to do.

Checks with 'ldd cpupower' on SLES, RHEL, Fedora, and Ubuntu result in
the correct binary AFAICT:

[root@testsystem cpupower]# ldd cpupower | grep cpupower
        libcpupower.so.0 => /lib64/libcpupower.so.0 (0x00007f1dab447000)

Commit ac5a181d06 ("cpupower: Add cpuidle parts into library") added a
new cpupower library version.  On Fedora, executing the cpupower binary
then resulted in this error

[root@testsystem cpupower]# ./cpupower monitor
./cpupower: symbol lookup error: ./cpupower: undefined symbol:
get_cpu_topology

64-bit libraries should be installed to /usr/lib64, and other libraries
should be installed to /usr/lib.

This code was taken from the perf Makefile.config which supports /usr/lib
and /usr/lib64.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-11-09 10:50:40 -07:00
Prarit Bhargava 9da779c324 cpupower: Fix no-rounding MHz frequency output
'cpupower frequency-info -ln' returns kHz values on systems with MHz range
minimum CPU frequency range.  For example, on a 800MHz to 4.20GHz system
the command returns

hardware limits: 800000 MHz - 4.200000 GHz

The code that causes this error can be removed.  The next else if clause
will handle the output correctly such that

hardware limits: 800.000 MHz - 4.200000 GHz

is displayed correctly.

[v2]: Remove two lines instead of fixing broken code.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: Thomas Renninger <trenn@suse.com>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Shuah Khan <shuah@kernel.org>
Reviewed-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-11-03 09:28:02 -06:00
Linus Torvalds ead751507d License cleanup: add SPDX license identifiers to some files
Many source files in the tree are missing licensing information, which
 makes it harder for compliance tools to determine the correct license.
 
 By default all files without license information are under the default
 license of the kernel, which is GPL version 2.
 
 Update the files which contain no license information with the 'GPL-2.0'
 SPDX license identifier.  The SPDX identifier is a legally binding
 shorthand, which can be used instead of the full boiler plate text.
 
 This patch is based on work done by Thomas Gleixner and Kate Stewart and
 Philippe Ombredanne.
 
 How this work was done:
 
 Patches were generated and checked against linux-4.14-rc6 for a subset of
 the use cases:
  - file had no licensing information it it.
  - file was a */uapi/* one with no licensing information in it,
  - file was a */uapi/* one with existing licensing information,
 
 Further patches will be generated in subsequent months to fix up cases
 where non-standard license headers were used, and references to license
 had to be inferred by heuristics based on keywords.
 
 The analysis to determine which SPDX License Identifier to be applied to
 a file was done in a spreadsheet of side by side results from of the
 output of two independent scanners (ScanCode & Windriver) producing SPDX
 tag:value files created by Philippe Ombredanne.  Philippe prepared the
 base worksheet, and did an initial spot review of a few 1000 files.
 
 The 4.13 kernel was the starting point of the analysis with 60,537 files
 assessed.  Kate Stewart did a file by file comparison of the scanner
 results in the spreadsheet to determine which SPDX license identifier(s)
 to be applied to the file. She confirmed any determination that was not
 immediately clear with lawyers working with the Linux Foundation.
 
 Criteria used to select files for SPDX license identifier tagging was:
  - Files considered eligible had to be source code files.
  - Make and config files were included as candidates if they contained >5
    lines of source
  - File already had some variant of a license header in it (even if <5
    lines).
 
 All documentation files were explicitly excluded.
 
 The following heuristics were used to determine which SPDX license
 identifiers to apply.
 
  - when both scanners couldn't find any license traces, file was
    considered to have no license information in it, and the top level
    COPYING file license applied.
 
    For non */uapi/* files that summary was:
 
    SPDX license identifier                            # files
    ---------------------------------------------------|-------
    GPL-2.0                                              11139
 
    and resulted in the first patch in this series.
 
    If that file was a */uapi/* path one, it was "GPL-2.0 WITH
    Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:
 
    SPDX license identifier                            # files
    ---------------------------------------------------|-------
    GPL-2.0 WITH Linux-syscall-note                        930
 
    and resulted in the second patch in this series.
 
  - if a file had some form of licensing information in it, and was one
    of the */uapi/* ones, it was denoted with the Linux-syscall-note if
    any GPL family license was found in the file or had no licensing in
    it (per prior point).  Results summary:
 
    SPDX license identifier                            # files
    ---------------------------------------------------|------
    GPL-2.0 WITH Linux-syscall-note                       270
    GPL-2.0+ WITH Linux-syscall-note                      169
    ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
    ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
    LGPL-2.1+ WITH Linux-syscall-note                      15
    GPL-1.0+ WITH Linux-syscall-note                       14
    ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
    LGPL-2.0+ WITH Linux-syscall-note                       4
    LGPL-2.1 WITH Linux-syscall-note                        3
    ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
    ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1
 
    and that resulted in the third patch in this series.
 
  - when the two scanners agreed on the detected license(s), that became
    the concluded license(s).
 
  - when there was disagreement between the two scanners (one detected a
    license but the other didn't, or they both detected different
    licenses) a manual inspection of the file occurred.
 
  - In most cases a manual inspection of the information in the file
    resulted in a clear resolution of the license that should apply (and
    which scanner probably needed to revisit its heuristics).
 
  - When it was not immediately clear, the license identifier was
    confirmed with lawyers working with the Linux Foundation.
 
  - If there was any question as to the appropriate license identifier,
    the file was flagged for further research and to be revisited later
    in time.
 
 In total, over 70 hours of logged manual review was done on the
 spreadsheet to determine the SPDX license identifiers to apply to the
 source files by Kate, Philippe, Thomas and, in some cases, confirmation
 by lawyers working with the Linux Foundation.
 
 Kate also obtained a third independent scan of the 4.13 code base from
 FOSSology, and compared selected files where the other two scanners
 disagreed against that SPDX file, to see if there was new insights.  The
 Windriver scanner is based on an older version of FOSSology in part, so
 they are related.
 
 Thomas did random spot checks in about 500 files from the spreadsheets
 for the uapi headers and agreed with SPDX license identifier in the
 files he inspected. For the non-uapi files Thomas did random spot checks
 in about 15000 files.
 
 In initial set of patches against 4.14-rc6, 3 files were found to have
 copy/paste license identifier errors, and have been fixed to reflect the
 correct identifier.
 
 Additionally Philippe spent 10 hours this week doing a detailed manual
 inspection and review of the 12,461 patched files from the initial patch
 version early this week with:
  - a full scancode scan run, collecting the matched texts, detected
    license ids and scores
  - reviewing anything where there was a license detected (about 500+
    files) to ensure that the applied SPDX license was correct
  - reviewing anything where there was no detection but the patch license
    was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
    SPDX license was correct
 
 This produced a worksheet with 20 files needing minor correction.  This
 worksheet was then exported into 3 different .csv files for the
 different types of files to be modified.
 
 These .csv files were then reviewed by Greg.  Thomas wrote a script to
 parse the csv files and add the proper SPDX tag to the file, in the
 format that the file expected.  This script was further refined by Greg
 based on the output to detect more types of files automatically and to
 distinguish between header and source .c files (which need different
 comment types.)  Finally Greg ran the script using the .csv files to
 generate the patches.
 
 Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
 Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
 Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWfswbQ8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ykvEwCfXU1MuYFQGgMdDmAZXEc+xFXZvqgAoKEcHDNA
 6dVh26uchcEQLN/XqUDt
 =x306
 -----END PGP SIGNATURE-----

Merge tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull initial SPDX identifiers from Greg KH:
 "License cleanup: add SPDX license identifiers to some files

  Many source files in the tree are missing licensing information, which
  makes it harder for compliance tools to determine the correct license.

  By default all files without license information are under the default
  license of the kernel, which is GPL version 2.

  Update the files which contain no license information with the
  'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally
  binding shorthand, which can be used instead of the full boiler plate
  text.

  This patch is based on work done by Thomas Gleixner and Kate Stewart
  and Philippe Ombredanne.

  How this work was done:

  Patches were generated and checked against linux-4.14-rc6 for a subset
  of the use cases:

   - file had no licensing information it it.

   - file was a */uapi/* one with no licensing information in it,

   - file was a */uapi/* one with existing licensing information,

  Further patches will be generated in subsequent months to fix up cases
  where non-standard license headers were used, and references to
  license had to be inferred by heuristics based on keywords.

  The analysis to determine which SPDX License Identifier to be applied
  to a file was done in a spreadsheet of side by side results from of
  the output of two independent scanners (ScanCode & Windriver)
  producing SPDX tag:value files created by Philippe Ombredanne.
  Philippe prepared the base worksheet, and did an initial spot review
  of a few 1000 files.

  The 4.13 kernel was the starting point of the analysis with 60,537
  files assessed. Kate Stewart did a file by file comparison of the
  scanner results in the spreadsheet to determine which SPDX license
  identifier(s) to be applied to the file. She confirmed any
  determination that was not immediately clear with lawyers working with
  the Linux Foundation.

  Criteria used to select files for SPDX license identifier tagging was:

   - Files considered eligible had to be source code files.

   - Make and config files were included as candidates if they contained
     >5 lines of source

   - File already had some variant of a license header in it (even if <5
     lines).

  All documentation files were explicitly excluded.

  The following heuristics were used to determine which SPDX license
  identifiers to apply.

   - when both scanners couldn't find any license traces, file was
     considered to have no license information in it, and the top level
     COPYING file license applied.

     For non */uapi/* files that summary was:

       SPDX license identifier                            # files
       ---------------------------------------------------|-------
       GPL-2.0                                              11139

     and resulted in the first patch in this series.

     If that file was a */uapi/* path one, it was "GPL-2.0 WITH
     Linux-syscall-note" otherwise it was "GPL-2.0". Results of that
     was:

       SPDX license identifier                            # files
       ---------------------------------------------------|-------
       GPL-2.0 WITH Linux-syscall-note                        930

     and resulted in the second patch in this series.

   - if a file had some form of licensing information in it, and was one
     of the */uapi/* ones, it was denoted with the Linux-syscall-note if
     any GPL family license was found in the file or had no licensing in
     it (per prior point). Results summary:

       SPDX license identifier                            # files
       ---------------------------------------------------|------
       GPL-2.0 WITH Linux-syscall-note                       270
       GPL-2.0+ WITH Linux-syscall-note                      169
       ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
       ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
       LGPL-2.1+ WITH Linux-syscall-note                      15
       GPL-1.0+ WITH Linux-syscall-note                       14
       ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
       LGPL-2.0+ WITH Linux-syscall-note                       4
       LGPL-2.1 WITH Linux-syscall-note                        3
       ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
       ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

     and that resulted in the third patch in this series.

   - when the two scanners agreed on the detected license(s), that
     became the concluded license(s).

   - when there was disagreement between the two scanners (one detected
     a license but the other didn't, or they both detected different
     licenses) a manual inspection of the file occurred.

   - In most cases a manual inspection of the information in the file
     resulted in a clear resolution of the license that should apply
     (and which scanner probably needed to revisit its heuristics).

   - When it was not immediately clear, the license identifier was
     confirmed with lawyers working with the Linux Foundation.

   - If there was any question as to the appropriate license identifier,
     the file was flagged for further research and to be revisited later
     in time.

  In total, over 70 hours of logged manual review was done on the
  spreadsheet to determine the SPDX license identifiers to apply to the
  source files by Kate, Philippe, Thomas and, in some cases,
  confirmation by lawyers working with the Linux Foundation.

  Kate also obtained a third independent scan of the 4.13 code base from
  FOSSology, and compared selected files where the other two scanners
  disagreed against that SPDX file, to see if there was new insights.
  The Windriver scanner is based on an older version of FOSSology in
  part, so they are related.

  Thomas did random spot checks in about 500 files from the spreadsheets
  for the uapi headers and agreed with SPDX license identifier in the
  files he inspected. For the non-uapi files Thomas did random spot
  checks in about 15000 files.

  In initial set of patches against 4.14-rc6, 3 files were found to have
  copy/paste license identifier errors, and have been fixed to reflect
  the correct identifier.

  Additionally Philippe spent 10 hours this week doing a detailed manual
  inspection and review of the 12,461 patched files from the initial
  patch version early this week with:

   - a full scancode scan run, collecting the matched texts, detected
     license ids and scores

   - reviewing anything where there was a license detected (about 500+
     files) to ensure that the applied SPDX license was correct

   - reviewing anything where there was no detection but the patch
     license was not GPL-2.0 WITH Linux-syscall-note to ensure that the
     applied SPDX license was correct

  This produced a worksheet with 20 files needing minor correction. This
  worksheet was then exported into 3 different .csv files for the
  different types of files to be modified.

  These .csv files were then reviewed by Greg. Thomas wrote a script to
  parse the csv files and add the proper SPDX tag to the file, in the
  format that the file expected. This script was further refined by Greg
  based on the output to detect more types of files automatically and to
  distinguish between header and source .c files (which need different
  comment types.) Finally Greg ran the script using the .csv files to
  generate the patches.

  Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
  Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
  Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

* tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  License cleanup: add SPDX license identifier to uapi header files with a license
  License cleanup: add SPDX license identifier to uapi header files with no license
  License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 10:04:46 -07:00
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00
Linus Torvalds 25a5d23b47 Kbuild fixes for v4.14 (2nd)
- fix O= building on dash
 
 - remove unused dependency in Makefile
 
 - fix default of a choice in Kconfig
 
 - fix typos and documentation style
 
 - fix command options unrecognized by sparse
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJZ9KBpAAoJED2LAQed4NsG85AP/RNrH/uyiLsBWfmicpTOt6Vx
 tHik2cn3TN5TBKcLcdh214zSBCPiJSp/dIvjOmIEssOqxJS001O+jlrnbB938hCn
 xVNs3aeBOx1StNB6DOplRtVe/pEIhSMMsXbIilz5a0kAn1mud73FqWmdXSRVA8zT
 JjI9gCl4pQTkv32Pz9w5HRWI8fweMnvbHfMUJhCaYcIIyN/hqfEzupPAeww4sKkg
 P5z60iif1OMlGgB9ZdWI+giblgLJOV+KoaUh181YEICenpsaf6rpdroP3X879N7i
 Y/le65xLVtc3rUZXoggNcGj04nZ7seSBHDbmicgWu0Fbj8+4nQ9mplVr1g1fLCVc
 Ml3joe24XO0PwXOrOTxCHQHRjqWSRv6cn8X9qIQqSLHkJgryxhZ5DiCGqQRxExLN
 gbKQ82UZSc4jNsOhcfcZ3ls7Ve5ao7rSUueL97acdDRhm+t0OWLmF9cQrX+eBzpj
 NOMaPvym+ucPNSRrhEgwFxDjB8dzVfO8tuYTuwX8HxQc7v5SUWuwsnurAXc3fKF2
 2D+VsU8EHk9IKDmQMIlvlj6R4bSr0bjecedA6czcRLMr83h1fCxvQxBw4UIQIzY0
 4y6QIUX7paMAo/OOqqOm10mBJM6Sr+y2JiGvL4gFhiGbCi3+xvOa7P4hRgPCe2Lq
 +FGPIdh+skAypoc/1VfA
 =0Rbk
 -----END PGP SIGNATURE-----

Merge tag 'kbuild-fixes-v4.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - fix O= building on dash

 - remove unused dependency in Makefile

 - fix default of a choice in Kconfig

 - fix typos and documentation style

 - fix command options unrecognized by sparse

* tag 'kbuild-fixes-v4.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: clang: fix build failures with sparse check
  kbuild doc: a bundle of fixes on makefiles.txt
  Makefile: kselftest: fix grammar typo
  kbuild: Fix optimization level choice default
  kbuild: drop unused symverfile in Makefile.modpost
  kbuild: revert $(realpath ...) to $(shell cd ... && /bin/pwd)
2017-10-28 11:01:57 -07:00
Len Brown c97cc7dbce Revert "tools/power turbostat: stop migrating, unless '-m'"
This reverts commit c91fc8519d.

That change caused a C6 and PC6 residency regression on large idle systems.

Users also complained about new output indicating jitter:

turbostat: cpu6 jitter 3794 9142

Signed-off-by: Len Brown <len.brown@intel.com>
Cc: 4.13+ <stable@vger.kernel.org> # v4.13+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-10-18 03:17:45 +02:00
Masahiro Yamada 028568d84d kbuild: revert $(realpath ...) to $(shell cd ... && /bin/pwd)
I thought commit 8e9b466799 ("kbuild: use $(abspath ...) instead of
$(shell cd ... && /bin/pwd)") was a safe conversion, but it changed
the behavior.

$(abspath ...) / $(realpath ...) does not expand shell special
characters, such as '~'.

Here is a simple Makefile example:

  ---------------->8----------------
  $(info /bin/pwd: $(shell cd ~/; /bin/pwd))
  $(info abspath: $(abspath ~/))
  $(info realpath: $(realpath ~/))
  all:
          @:
  ---------------->8----------------

  $ make
  /bin/pwd: /home/masahiro
  abspath: /home/masahiro/workspace/~
  realpath:

This can be a real problem if 'make O=~/foo' is invoked from another
Makefile or primitive shell like dash.

This commit partially reverts 8e9b466799.

Fixes: 8e9b466799 ("kbuild: use $(abspath ...) instead of $(shell cd ... && /bin/pwd)")
Reported-by: Julien Grall <julien.grall@arm.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Julien Grall <julien.grall@arm.com>
2017-10-07 20:08:02 +09:00
Bob Moore fe97d28704 ACPICA: Restructure/cleanup all string-to-integer conversion functions
ACPICA commit 610046d444ad781cc36673bf1f030abe50cbc61f

Improve adherence to ACPI spec for implicit and explicit conversions
Adds octal support for constants in ASL code
Adds integer overflow errors for constants during ASL compilation
Eliminates most of the existing complex flags parameters
Simplify support for implicit/explicit runtime conversions
Adds one new file, utilities/utstrsuppt.c

Link: https://github.com/acpica/acpica/commit/610046d444ad
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-10-04 01:43:06 +02:00
Linus Torvalds a2bc8dea9e Kbuild updates for v4.14
- Use Make-builtin $(abspath ...) helper to get absolute path
 
 - Add W=2 extra warning option to detect unused macros
 
 - Use more KCONFIG_CONFIG instead hard-coded .config
 
 - Fix bugs of tar*-pkg targets
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJZupWLAAoJED2LAQed4NsGVEEQAItJ0y1uxDr0cjJNE46N6p6+
 EMCWKWC2H0XR9oFRY1y5utYWIwRauIaESgGg1qMU6Lbg5qZamggpNrYVH207tCz1
 gNkU8wwc2SXpxJy2eG2asxY9L2mL0a5fFFOgxIxoz+hCTgr4Yk1IGnTH9+GPQKtW
 thduXxTvcB4/oNTOgUHNj/7j9ydn7ETTOjsCoaEwBZqtBaaEBj20h6EOhgX+ouMd
 5P9YoCbfk28KHKlnMd8sNHV5SLKb94wCwoM/QIOLl42rwIAc81dUgOmaMGeflXF9
 zBH1exi4ID9SyQyuMZemJNe0bD6YR2qG0Sf1t2eDnhxmcav7Vwk+WV7Pdpr8UWw8
 Lot9yPJQA43kfYj6pfCJFXzWEduNT48zGGBJb30WyGkBkidNNGkujdSeI36swEQD
 fPV9tHPk48OSNPqJWZXehezBqN9U5Sa1M9dk5TNA69mzdZgNp052flxywBQ/SGTO
 +h17SREP9Mm6CQ9ApfHaOlMr40/mpCCDq+p8pfem5ZtnBby9k4uNp2P9hAMTJdw8
 5AOdwB0MdzvMQgF5UO0kklk6HGUZTAGHi91k5k3e+DPydt9+2ntZFZoVwVYaD756
 E55KKrQZqSO758gnN9Wbr8ihgOhNI3ZA320nCjfwQdnUqQ496KAkLpgVALF8pEVi
 /xIBawfQNj9BlDc3Y3jo
 =Tam1
 -----END PGP SIGNATURE-----

Merge tag 'kbuild-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - Use Make-builtin $(abspath ...) helper to get absolute path

 - Add W=2 extra warning option to detect unused macros

 - Use more KCONFIG_CONFIG instead hard-coded .config

 - Fix bugs of tar*-pkg targets

* tag 'kbuild-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: buildtar: do not print successful message if tar returns error
  kbuild: buildtar: fix tar error when CONFIG_MODULES is disabled
  kbuild: Use KCONFIG_CONFIG in buildtar
  Kbuild: enable -Wunused-macros warning for "make W=2"
  kbuild: use $(abspath ...) instead of $(shell cd ... && /bin/pwd)
2017-09-14 13:46:33 -07:00
Linus Torvalds 53ac64aac9 ACPI updates for v4.14-rc1
- Update the ACPICA code in the kernel to upstream revision 20170728
    including:
    * Alias operator handling update (Bob Moore).
    * Deferred resolution of reference package elements (Bob Moore).
    * Support for the _DMA method in walk resources (Bob Moore).
    * Tables handling update and support for deferred table
      verification (Lv Zheng).
    * Update of SMMU models for IORT (Robin Murphy).
    * Compiler and disassembler updates (Alex James, Erik Schmauss,
      Ganapatrao Kulkarni, James Morse).
    * Tools updates (Erik Schmauss, Lv Zheng).
    * Assorted minor fixes and cleanups (Bob Moore, Kees Cook,
      Lv Zheng, Shao Ming).
 
  - Rework the initialization of non-wakeup GPEs with method handlers
    in order to address a boot crash on some systems with Thunderbolt
    devices connected at boot time where we miss an early hotplug
    event due to a delay in GPE enabling (Rafael Wysocki).
 
  - Rework the handling of PCI bridges when setting up ACPI-based
    device wakeup in order to avoid disabling wakeup for bridges
    prematurely (Rafael Wysocki).
 
  - Consolidate Apple DMI checks throughout the tree, add support for
    Apple device properties to the device properties framework and
    use these properties for the handling of I2C and SPI devices on
    Apple systems (Lukas Wunner).
 
  - Add support for _DMA to the ACPI-based device properties lookup
    code and make it possible to use the information from there to
    configure DMA regions on ARM64 systems (Lorenzo Pieralisi).
 
  - Fix several issues in the APEI code, add support for exporting
    the BERT error region over sysfs and update APEI MAINTAINERS
    entry with reviewers information (Borislav Petkov, Dongjiu Geng,
    Loc Ho, Punit Agrawal, Tony Luck, Yazen Ghannam).
 
  - Fix a potential initialization ordering issue in the ACPI EC
    driver and clean it up somewhat (Lv Zheng).
 
  - Update the ACPI SPCR driver to extend the existing XGENE 8250
    workaround in it to a new platform (m400) and to work around
    an Xgene UART clock issue (Graeme Gregory).
 
  - Add a new utility function to the ACPI core to support using
    ACPI OEM ID / OEM Table ID / Revision for system identification
    in blacklisting or similar and switch over the existing code
    already using this information to this new interface (Toshi Kani).
 
  - Fix an xpower PMIC issue related to GPADC reads that always return
    0 without extra pin manipulations (Hans de Goede).
 
  - Add statements to print debug messages in a couple of places in
    the ACPI core for easier diagnostics (Rafael Wysocki).
 
  - Clean up the ACPI processor driver slightly (Colin Ian King,
    Hanjun Guo).
 
  - Clean up the ACPI x86 boot code somewhat (Andy Shevchenko).
 
  - Add a quirk for Dell OptiPlex 9020M to the ACPI backlight
    driver (Alex Hung).
 
  - Assorted fixes, cleanups and updates related to ACPI (Amitoj Kaur
    Chawla, Bhumika Goyal, Frank Rowand, Jean Delvare, Punit Agrawal,
    Ronald Tschalär, Sumeet Pawnikar).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJZrcE+AAoJEILEb/54YlRxVGAP/RKzkJlYlOIXtMjf4XWg5ZfJ
 RKZA68E9DW179KoBoTCVPD6/eD5UoEJ7fsWXFU2Hgp2xL3N1mZMAJHgAE4GoAwCx
 uImoYvQgdPna7DawzRIFkvkfceYxNyh+KaV9s7xne4hAwsB7JzP9yf5Ywll53+oF
 Le27/r6lDOaWhG7uYcxSabnQsWZQkBF5mj2GPzEpKDIHcLA1Vii0URzm7mAHdZsz
 vGjYhxrshKYEVdkLSRn536m1rEfp2fqsRJ5wqNAazZJr6Cs1WIfNVuv/RfduRJpG
 /zHIRAmgKV+3jp39cBpjdnexLczb1rGiCV1yZOvwCNM7jy4evL8vbL7VgcUCopaj
 fHbF34chNG/hKJd3Zn3RRCTNzCs6bv+txslOMARxji5eyr2Q4KuVnvg5LM4hxOUP
 23FvcYkBYWu4QCNLOTnC7y2OqK6WzOvDpfi7hf13Z42iNzeAUbwt1sVF0/OCwL51
 Og6blSy2x8FidKp8oaBBboBzHEiKWnXBj/Hw8KEHVcsqZv1ZC6igNRAL3tjxamU8
 98/Z2NSZHYPrrrn13tT9ywISYXReXzUF85787+0ofugvDe8/QyBH6UhzzZc/xKVA
 t329JEjEFZZSLgxMIIa9bXoQANxkeZEGsxN6FfwvQhyIVdagLF3UvCjZl/q2NScC
 9n++s32qfUBRHetGODWc
 =6Ke9
 -----END PGP SIGNATURE-----

Merge tag 'acpi-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These include a usual ACPICA code update (this time to upstream
  revision 20170728), a fix for a boot crash on some systems with
  Thunderbolt devices connected at boot time, a rework of the handling
  of PCI bridges when setting up device wakeup, new support for Apple
  device properties, support for DMA configurations reported via ACPI on
  ARM64, APEI-related updates, ACPI EC driver updates and assorted minor
  modifications in several places.

  Specifics:

   - Update the ACPICA code in the kernel to upstream revision 20170728
     including:
      * Alias operator handling update (Bob Moore).
      * Deferred resolution of reference package elements (Bob Moore).
      * Support for the _DMA method in walk resources (Bob Moore).
      * Tables handling update and support for deferred table
        verification (Lv Zheng).
      * Update of SMMU models for IORT (Robin Murphy).
      * Compiler and disassembler updates (Alex James, Erik Schmauss,
        Ganapatrao Kulkarni, James Morse).
      * Tools updates (Erik Schmauss, Lv Zheng).
      * Assorted minor fixes and cleanups (Bob Moore, Kees Cook, Lv
        Zheng, Shao Ming).

   - Rework the initialization of non-wakeup GPEs with method handlers
     in order to address a boot crash on some systems with Thunderbolt
     devices connected at boot time where we miss an early hotplug event
     due to a delay in GPE enabling (Rafael Wysocki).

   - Rework the handling of PCI bridges when setting up ACPI-based
     device wakeup in order to avoid disabling wakeup for bridges
     prematurely (Rafael Wysocki).

   - Consolidate Apple DMI checks throughout the tree, add support for
     Apple device properties to the device properties framework and use
     these properties for the handling of I2C and SPI devices on Apple
     systems (Lukas Wunner).

   - Add support for _DMA to the ACPI-based device properties lookup
     code and make it possible to use the information from there to
     configure DMA regions on ARM64 systems (Lorenzo Pieralisi).

   - Fix several issues in the APEI code, add support for exporting the
     BERT error region over sysfs and update APEI MAINTAINERS entry with
     reviewers information (Borislav Petkov, Dongjiu Geng, Loc Ho, Punit
     Agrawal, Tony Luck, Yazen Ghannam).

   - Fix a potential initialization ordering issue in the ACPI EC driver
     and clean it up somewhat (Lv Zheng).

   - Update the ACPI SPCR driver to extend the existing XGENE 8250
     workaround in it to a new platform (m400) and to work around an
     Xgene UART clock issue (Graeme Gregory).

   - Add a new utility function to the ACPI core to support using ACPI
     OEM ID / OEM Table ID / Revision for system identification in
     blacklisting or similar and switch over the existing code already
     using this information to this new interface (Toshi Kani).

   - Fix an xpower PMIC issue related to GPADC reads that always return
     0 without extra pin manipulations (Hans de Goede).

   - Add statements to print debug messages in a couple of places in the
     ACPI core for easier diagnostics (Rafael Wysocki).

   - Clean up the ACPI processor driver slightly (Colin Ian King, Hanjun
     Guo).

   - Clean up the ACPI x86 boot code somewhat (Andy Shevchenko).

   - Add a quirk for Dell OptiPlex 9020M to the ACPI backlight driver
     (Alex Hung).

   - Assorted fixes, cleanups and updates related to ACPI (Amitoj Kaur
     Chawla, Bhumika Goyal, Frank Rowand, Jean Delvare, Punit Agrawal,
     Ronald Tschalär, Sumeet Pawnikar)"

* tag 'acpi-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (75 commits)
  ACPI / APEI: Suppress message if HEST not present
  intel_pstate: convert to use acpi_match_platform_list()
  ACPI / blacklist: add acpi_match_platform_list()
  ACPI, APEI, EINJ: Subtract any matching Register Region from Trigger resources
  ACPI: make device_attribute const
  ACPI / sysfs: Extend ACPI sysfs to provide access to boot error region
  ACPI: APEI: fix the wrong iteration of generic error status block
  ACPI / processor: make function acpi_processor_check_duplicates() static
  ACPI / EC: Clean up EC GPE mask flag
  ACPI: EC: Fix possible issues related to EC initialization order
  ACPI / PM: Add debug statements to acpi_pm_notify_handler()
  ACPI: Add debug statements to acpi_global_event_handler()
  ACPI / scan: Enable GPEs before scanning the namespace
  ACPICA: Make it possible to enable runtime GPEs earlier
  ACPICA: Dispatch active GPEs at init time
  ACPI: SPCR: work around clock issue on xgene UART
  ACPI: SPCR: extend XGENE 8250 workaround to m400
  ACPI / LPSS: Don't abort ACPI scan on missing mem resource
  mailbox: pcc: Drop uninformative output during boot
  ACPI/IORT: Add IORT named component memory address limits
  ...
2017-09-05 12:45:03 -07:00
Masahiro Yamada 8e9b466799 kbuild: use $(abspath ...) instead of $(shell cd ... && /bin/pwd)
Kbuild conventionally uses $(shell cd ... && /bin/pwd) idiom to get
the absolute path of the directory because GNU Make 3.80, the minimal
supported version at that time, did not support $(abspath ...) or
$(realpath ...).

Commit 37d69ee308 ("docs: bump minimal GNU Make version to 3.81")
dropped the GNU Make 3.80 support, so we are now allowed to use those
make-builtin helpers.

This conversion will provide better portability without relying on
the pwd command or its location /bin/pwd.

I am intentionally using $(realpath ...) instead $(abspath ...) in
some places.  The difference between the two is $(realpath ...)
returns an empty string if the given path does not exist.  It is
convenient in places where we need to error-out if the makefile fails
to create an output directory.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Thierry Reding <treding@nvidia.com>
2017-09-01 08:50:32 +09:00
Lv Zheng 03c5b6b0da ACPICA: acpidump: Add DSDT/FACS instance support for Linux and EFI
ACPICA commit 343fc31840d40c06001f3b170ee5bcdfd3c7f3e0

ACPI spec allows to configure different 32-bit/64-bit table addresses for
DSDT and FACS. And for FACS, it's meaningful to dump both of them as they
are used to support different suspend protocols.

While:
1. on Linux, only 1 instance is supported for DSDT/FACS; and
2. on EFI, the code in osl_get_table() is buggy with special table instances,
   causing endless file dump for such tables (reported by Shao Ming in link
   #2).

This patch adds DSDT/FACS instance support for Linux/EFI acpidump. Fixed by
Lv Zheng.

Link: https://github.com/acpica/acpica/commit/343fc318
Link: https://bugs.acpica.org/show_bug.cgi?id=1407 [#1]
Link: https://github.com/acpica/acpica/issues/285  [#2]
Reported-by: Shao Ming <smbest163@163.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-08-03 23:34:16 +02:00
Lv Zheng 65082bfcb4 ACPICA: CLib: Add short multiply/shift support
ACPICA commit 01b8f5a2350b9cc329cd8402ac8faec36fc501f5

In order to build ACPICA EFI tools with EDK-II on Windows, 64-bit
multiply/shift supports are also required to be implemented. Otherwise,
MSVC complains:
 acpidump.lib(utstrtoul64.obj) : error LNK2001: unresolved external symbol __allmul
 acpidump.lib(uthex.obj) : error LNK2001: unresolved external symbol __aullshr

Note:
1. This patch also splits _EDK2_EFI from _GNU_EFI as they might have
   different math64 supports.
2. Support of gcc math64 is not included in this patch.
3. Support of EDK2 arch independent math64 is done via linking to base_lib.

This patch fixes this issue. Reported by Shao Ming, fixed by Lv Zheng.

For Linux kernel, this patch is a functional no-op.

Link: https://github.com/acpica/acpica/commit/01b8f5a2
Tested-by: "Shao, Ming" <smbest163@163.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-08-03 23:34:16 +02:00
Prarit Bhargava d0e4a193c3 tools/power/cpupower: allow running without cpu0
Linux-3.7 added CONFIG_BOOTPARAM_HOTPLUG_CPU0,
allowing systems to offline cpu0.

But when cpu0 is offline, cpupower monitor will not display all
processor and Mperf information:

[root@intel-skylake-dh-03 cpupower]# ./cpupower monitor
WARNING: at least one cpu is offline
    |Idle_Stats
CPU | POLL | C1-S | C1E- | C3-S | C6-S | C7s- | C8-S
   4|  0.00|  0.00|  0.00|  0.00|  0.90|  0.00| 96.13
   1|  0.00|  0.00|  5.49|  0.00|  0.01|  0.00| 92.26
   5|  0.00|  0.00|  0.00|  0.00|  0.46|  0.00| 99.50
   2| 45.42|  0.00|  0.00|  0.00| 22.94|  0.00| 28.84
   6|  0.00| 37.54|  0.00|  0.00|  0.00|  0.00|  0.00
   3|  0.00|  0.00|  0.00|  0.00|  0.30|  0.00| 91.99
   7|  0.00|  0.00|  0.00|  0.00|  4.70|  0.00|  0.70

This patch replaces the hard-coded use of cpu0 in cpupower with the
current cpu, allowing it to run without a cpu0.

After the patch is applied,

[root@intel-skylake-dh-03 cpupower]# ./cpupower monitor
WARNING: at least one cpu is offline
    |Nehalem                    || Mperf              || Idle_Stats
CPU | C3   | C6   | PC3  | PC6  || C0   | Cx   | Freq || POLL | C1-S | C1E- | C3-S | C6-S | C7s- | C8-S
   4|  0.01|  1.27|  0.00|  0.00||  0.04| 99.96|  3957||  0.00|  0.00|  0.00|  0.00|  1.43|  0.00| 98.52
   1|  0.00| 98.82|  0.00|  0.00||  0.05| 99.95|  3361||  0.00|  0.00|  0.01|  0.00|  0.03|  0.00| 99.88
   5|  0.00| 98.82|  0.00|  0.00||  0.09| 99.91|  3917||  0.00|  0.00|  0.00|  0.00| 99.38|  0.00|  0.50
   2|  0.33|  0.00|  0.00|  0.00||  0.00|100.00|  3890||  0.00|  0.00|  0.00|  0.00|  0.00|  0.00|100.00
   6|  0.33|  0.00|  0.00|  0.00||  0.01| 99.99|  3903||  0.00|  0.00|  0.00|  0.00|  0.00|  0.00| 99.99
   3|  0.01|  0.71|  0.00|  0.00||  0.06| 99.94|  3678||  0.00|  0.00|  0.00|  0.00|  0.80|  0.00| 99.13
   7|  0.01|  0.71|  0.00|  0.00||  0.03| 99.97|  3538||  0.00|  0.69| 11.70|  0.00|  0.00|  0.00| 87.57

There are some minor cleanups included in this patch.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Thomas Renninger <trenn@suse.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-07-31 14:17:30 +02:00
Todd E Brandt 2158e7244d pm-graph: package makefile and man pages
update help text and man pages for both tools
- added more examples and separated them by category
Makefile upgrades
- uninstall: remove errors from uninstall if tool not found
- install: perform uninstall before install

Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-07-22 01:56:14 +02:00
Todd E Brandt 370f4c2324 pm-graph: AnalyzeBoot v2.1
- changed output from single html file to dir with html/dmesg/ftrace
- add sysinfo to logs and timeline
- add -sysinfo command, displays dmidecode values and cpu/mem info
- set trace buffer size to lesser of memtotal/2 or 2GB when using callgraph
- extended timeline to the last init call in user space
  separated timeline into two phases, kernel mode & user mode
- add kernel version check for ftrace usage, 4.10 minimum
- change -filter argument to -func
- add strict protections on -func usage with full symbol checks
  now only works for statically linked functions
  cmd -flistall now ignores all loadable module functions
- add -cgfilter argument for reducing timeline size by removing callgraphs
- crontab usage: preserve existing @reboot lines in user crontab
- fedora support added: uses grub2 loader, handles fedora crontab
- stop using "which" to find binaries, search pre-defined path list
- moved most output processing to analyze_suspend library

Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-07-22 01:56:13 +02:00
Todd E Brandt 49218edd64 pm-graph: AnalyzeSuspend v4.7
- changed -rtcwake parameter to be on & 15 sec by default,
  to disable rtcwake use: "-rtcwake off"
- changed behavior of -o: renames HTML file on rerun, subdir on new run
- changed execution_misalignment error to missing_function_name
- add sysinfo to logs and timeline via a custom dmidecode call
  it supplants dmidecode tool when used as a library call
- add -sysinfo command, displays dmidecode values and cpu/mem info
- set trace buffer size to lesser of memtotal/2 or 2GB when using callgraph
- add support for /sys/power/mem_sleep. if mem_sleep found:
  mem-shallow=standby, mem-s2idle=freeze, mem-deep=mem
- remove redundant javascript
- cosmetic changes to HTML layout

Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-07-22 01:56:13 +02:00
Linus Torvalds eceeae414e ACPI updates for v4.13-rc1
- Update the ACPICA code in the kernel to upstream revision
    revision 20170531 (which covers all of the new material from
    ACPI 6.2) including:
    * Support for the PinFunction(), PinConfig(), PinGroup(),
      PinGroupFunction(), and PinGroupConfig() resource descriptors
      (Mika Westerberg).
    * Support for new subtables in HEST and SRAT, new notify value
      for HEST, header support for TPM2 table changes, and BGRT
      Status field update (Bob Moore).
    * Support for new PCCT subtables (David Box).
    * Support for _LSI, _LSR, _LSW, and _HMA as predefined methods
      (Erik Schmauss).
    * Support for the new WSMT, HMAT, and PPTT tables (Lv Zheng).
    * New UUID values for Processor Properties (Bob Moore).
    * New notify values for memory attributes and graceful shutdown
      (Bob Moore).
    * Fix related to the PCAT_COMPAT MADT flag (Janosch Hildebrand).
    * Resource to AML conversion fix for resources containing GPIOs
      (Mika Westerberg).
    * Disassembler-related updates (Bob Moore, David Box, Erik
      Schmauss).
    * Assorted fixes and cleanups (Bob Moore, Erik Schmauss, Lv Zheng,
      Cao Jin).
 
  - Modify ACPICA to always use designated initializers for function
    pointer structures to make the structure layout randomization GCC
    plugin work with it (Kees Cook).
 
  - Update the tables configfs interface to unload SSDTs on configfs
    entry removal (Jan Kiszka).
 
  - Add support for the GPI1 regulator to the xpower PMIC Operation
    Region handler (Hans de Goede).
 
  - Fix ACPI EC issues related to conflicting EC definitions in the
    ECDT and in the ACPI namespace (Lv Zheng, Carlo Caione, Chris
    Chiu).
 
  - Fix an interrupt storm issue in the EC driver and make its debug
    output work with dynamic debug as expected (Lv Zheng).
 
  - Add ACPI backlight quirk for Dell Precision 7510 (Shih-Yuan Lee).
 
  - Fix whitespace in pr_fmt() to align log entries properly in some
    places in the ACPI subsystem (Vincent Legoll).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJZWrJyAAoJEILEb/54YlRxY2cP/1h2un46sEnP7uLVLK4lpEih
 NQ79+fA7NTidA9J6gin2Kjgl8BFgswAhQBJZG3cJxUrhIIRWItSeLGvHb0CXX+iY
 m7CpL0ralIKV9XCju8B5b2V+0qn2tPzHS5a8PSX9Gvs0N6G8Qnlq4jspIjXMa3zH
 3D/fmYbQZeuHjypiBqRlB5IE49O2FQL2+d4Vn1rryuAFFya610ulASOZxsQ015d4
 Xt2pSTqUbqeD8rG8+j4VKFy8x0Lj0eEU3FUgYNJHlO+pOG+wTTs3KPyNOa33h0OC
 US0Wc0XOUyz78P5YkEgA7Ve/j1E6bqQ9bVF6mIcqjvAOReqSe84RCJ86Ckjlewxf
 VMNjCT/qDDkB8d+IAX6e7uYwxuP8bTSfUGBHjoI16qaJ13zd1/jOVY8QH5zPg5Ml
 r06HO5iOrQS3yhumYRk3gIdV+cgdHt3SEQlfi30nFH5Yzp8epk85UPyjYUYPDwqy
 QP5QbYvmHyuIUSXW2HQxZYADSaqnKIglRizCIKcFHT5+J554DjM5T51A5UpyQkY3
 cjtgrpg4KA5qCrpUAqPPxA2mtUVsZk1h4HwhrkTVt4xaR9GP9gvvzonP552fmHrM
 nIX9tM2JEf+LC7eCV+yrk8dtGNTRYpmEBQw7go4R82pTE5YTOWDf1bNM59gTFoWP
 LXi28C9lb2aibWlX/0bw
 =ImFw
 -----END PGP SIGNATURE-----

Merge tag 'acpi-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These mostly update the ACPICA code in the kernel to upstream revision
  20170531 which covers all of the new material from ACPI 6.2, including
  new tables (WSMT, HMAT, PPTT), new subtables and definition changes
  for some existing tables (BGRT, HEST, SRAT, TPM2, PCCT), new resource
  descriptor macros for pin control, support for new predefined methods
  (_LSI, _LSR, _LSW, _HMA), fixes and cleanups.

  On top of that, an additional ACPICA change from Kees (which also is
  upstream already) switches all of the definitions of function pointer
  structures in ACPICA to use designated initializers so as to make the
  structure layout randomization GCC plugin work with it.

  The rest is a few fixes and cleanups in the EC driver, an xpower PMIC
  driver update, a new backlight blacklist entry, and update of the
  tables configfs interface and a messages formatting cleanup.

  Specifics:

   - Update the ACPICA code in the kernel to upstream revision revision
     20170531 (which covers all of the new material from ACPI 6.2)
     including:
      * Support for the PinFunction(), PinConfig(), PinGroup(),
        PinGroupFunction(), and PinGroupConfig() resource descriptors
        (Mika Westerberg).
      * Support for new subtables in HEST and SRAT, new notify value for
        HEST, header support for TPM2 table changes, and BGRT Status
        field update (Bob Moore).
      * Support for new PCCT subtables (David Box).
      * Support for _LSI, _LSR, _LSW, and _HMA as predefined methods
        (Erik Schmauss).
      * Support for the new WSMT, HMAT, and PPTT tables (Lv Zheng).
      * New UUID values for Processor Properties (Bob Moore).
      * New notify values for memory attributes and graceful shutdown
        (Bob Moore).
      * Fix related to the PCAT_COMPAT MADT flag (Janosch Hildebrand).
      * Resource to AML conversion fix for resources containing GPIOs
        (Mika Westerberg).
      * Disassembler-related updates (Bob Moore, David Box, Erik
        Schmauss).
      * Assorted fixes and cleanups (Bob Moore, Erik Schmauss, Lv Zheng,
        Cao Jin).

   - Modify ACPICA to always use designated initializers for function
     pointer structures to make the structure layout randomization GCC
     plugin work with it (Kees Cook).

   - Update the tables configfs interface to unload SSDTs on configfs
     entry removal (Jan Kiszka).

   - Add support for the GPI1 regulator to the xpower PMIC Operation
     Region handler (Hans de Goede).

   - Fix ACPI EC issues related to conflicting EC definitions in the
     ECDT and in the ACPI namespace (Lv Zheng, Carlo Caione, Chris
     Chiu).

   - Fix an interrupt storm issue in the EC driver and make its debug
     output work with dynamic debug as expected (Lv Zheng).

   - Add ACPI backlight quirk for Dell Precision 7510 (Shih-Yuan Lee).

   - Fix whitespace in pr_fmt() to align log entries properly in some
     places in the ACPI subsystem (Vincent Legoll)"

* tag 'acpi-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (63 commits)
  ACPI / EC: Add quirk for GL720VMK
  ACPI / EC: Fix media keys not working problem on some Asus laptops
  ACPI / EC: Add support to skip boot stage DSDT probe
  ACPI / EC: Enhance boot EC sanity check
  ACPI / video: Add quirks for the Dell Precision 7510
  ACPI: EC: Fix EC command visibility for dynamic debug
  ACPI: EC: Fix an EC event IRQ storming issue
  ACPICA: Use designated initializers
  ACPICA: Update version to 20170531
  ACPICA: Update a couple of debug output messages
  ACPICA: acpiexec: enhance local signal handler
  ACPICA: Simplify output for the ACPI Debug Object
  ACPICA: Unix application OSL: Correctly handle control-c (EINTR)
  ACPICA: Improvements for debug output only
  ACPICA: Disassembler: allow conflicting external declarations to be emitted.
  ACPICA: Disassembler: add external op to namespace on first pass
  ACPICA: Disassembler: prevent external op's from opening a new scope
  ACPICA: Changed Gbl_disasm_flag to acpi_gbl_disasm_flag
  ACPICA: Changing External to a named object
  ACPICA: Update two error messages to emit control method name
  ...
2017-07-04 14:16:49 -07:00
Bob Moore fdf8707bd5 ACPICA: Unix application OSL: Correctly handle control-c (EINTR)
ACPICA commit dfbb87c3a96cfd007375f34a96e6f4a8ee477f97

Handle EINTR from a sem_wait operation. Ignore a control-c.

Link: https://github.com/acpica/acpica/commit/dfbb87c3
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27 22:25:26 +02:00
Sherry Hurwitz 902bef73fa cpupower: Add support for new AMD family 0x17
Add support for new AMD family 0x17
- Add bit field changes to the msr_pstate structure
- Add the new formula for the  calculation of cof
- Changed method to access to CpbDis

Signed-off-by: Sherry Hurwitz <sherry.hurwitz@amd.com>
Acked-by: Thomas Renninger <trenn@suse.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27 01:43:22 +02:00
Sherry Hurwitz 6ae78b4e7c cpupower: Fix bug where return value was not used
Save return value from amd_pci_get_num_boost_states
and remove redundant setting of *support

Signed-off-by: Sherry Hurwitz <sherry.hurwitz@amd.com>
Reviewed-by: Thomas Renninger <trenn@suse.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27 01:43:21 +02:00
Rafael J. Wysocki 5422583bfa Merge back PM tools material for v4.13. 2017-06-27 01:42:51 +02:00
Len Brown f7d44a8f3f tools/power turbostat: update version number
Signed-off-by: Len Brown <len.brown@intel.com>
2017-06-24 20:03:42 -07:00
Len Brown f26b151977 tools/power turbostat: decode MSR_IA32_MISC_ENABLE only on Intel
otherwise, turbostat bails on on AMD Opteron boxes:

turbostat: cpu26: msr offset 0x1a0 read failed: Input/output error

Reported-by: Kamil Kolakowski <kkolakow@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2017-06-24 20:03:41 -07:00
Len Brown c91fc8519d tools/power turbostat: stop migrating, unless '-m'
Turbostat has the capability to set its own affinity to
each CPU so that its MSR accesses are on the local CPU.

However, using the in-kernel cross-call in  the msr driver
tends to be less invasive, so do that -- by-default.
'-m' remains to get the old behaviour.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-06-24 20:03:19 -07:00
Len Brown f4fdf2b474 tools/power turbostat: if --debug, print sampling overhead
The --debug option now pre-pends each row with
the number  of micro-seconds [usec] to collect
the finishing snapshot for that row.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-06-23 20:52:23 -07:00
Len Brown a99d87306f tools/power turbostat: hide SKL counters, when not requested
Skylake has some new counters, and they were erroneously
exempt  from --show and --hide

eg.

turbostat  --quiet --show CPU
CPU	Totl%C0	Any%C0	GFX%C0	CPUGFX%
-	116.73	90.56	85.69	79.00
0	117.78	91.38	86.47	79.71
2
1
3

is now

CPU
-
0
2
1
3

Signed-off-by: Len Brown <len.brown@intel.com>
2017-06-23 20:52:23 -07:00
Rafael J. Wysocki e3170cc04d Merge branches 'acpi-button' and 'acpi-tools'
* acpi-button:
  Revert "ACPI / button: Remove lid_init_state=method mode"

* acpi-tools:
  tools/power/acpi: Add .gitignore file
2017-05-22 20:29:06 +02:00
Rafael J. Wysocki a32f80b30d Merge branch 'utilities' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Pull power management utilities updates from Len Brown.

* 'utilities' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  intel_pstate: use updated msr-index.h HWP.EPP values
  tools/power x86_energy_perf_policy: support HWP.EPP
  x86: msr-index.h: fix shifts to ULL results in HWP macros.
  x86: msr-index.h: define HWP.EPP values
  x86: msr-index.h: define EPB mid-points
2017-05-16 03:15:27 +02:00
Prarit Bhargava bdce57e7ae tools/power/acpi: Add .gitignore file
Add a .gitignore file so that git commands do not pick up the resulting
binaries and directories.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-05-12 23:05:00 +02:00
Len Brown 4beec1d751 tools/power x86_energy_perf_policy: support HWP.EPP
x86_energy_perf_policy(8) was created as an example
of how the user, or upper-level OS, can manage
MSR_IA32_ENERGY_PERF_BIAS (EPB).

Hardware consults EPB when it makes internal decisions
balancing energy-saving vs performance.
For example, should HW quickly or slowly
transition into and out of power-saving idles states?
Should HW quickly or slowly ramp frequency up or down
in response to demand in the turbo-frequency range?

Depending on the processor, EPB may have package, core,
or CPU thread scope.  As such, the only general policy
is to write the same value to EPB on every CPU in the system.

Recent platforms add support for Hardware Performance States (HWP).
HWP effectively extends hardware frequency control from
the opportunistic turbo-frequency range to control the entire
range of available processor frequencies.

Just as turbo-mode used EPB, HWP can use EPB to help decicde
how quickly to ramp frequency and voltage up and down
in response to changing demand.  Indeed, BDX and BDX-DE,
the first processors to support HWP, use EPB for this purpose.

Starting in SKL, HWP no longer looks to EPB for influence.
Instead, it looks in a new MSR specifically for this purpose:
IA32_HWP_REQUEST.Energy_Performance_Preference (HWP.EPP).
HWP.EPP is like EPB, except that it is specific to HWP-mode
frequency selection.  Also, HWP.EPP is defined to have
per CPU-thread scope.

Starting in SKX, IA32_HWP_REQUEST is augmented by
IA32_HWP_REQUEST_PKG -- which has the same function, but is
defined to have package-wide scope.  A new bit in IA32_HWP_REQUEST
determines if it over-rides the IA32_HWP_REQUEST_PKG or not.

Note that HWP-mode can be enabled in several ways.
The "in-band" method is for HWP to be exposed in CPUID,
and for the Linux intel_pstate driver to recognized that,
and thus enable HWP.  In this case, starting in Linux 4.10, intel_pstate
exports cpufreq sysfs attribute "energy_performance_preference"
which can be used to manage HWP.EPP.  This interface can be
used to set HWP.EPP to these values:

0 performance
128 balance_performance (default)
192 balance_power
255 power

Here, x86_energy_performance_policy is updated to use
idential strings and values as intel_pstate.

But HWP-mode may also be enabled by firmware before the OS boots,
and the OS may not be aware of HWP.  In this case, intel_pstate
is not available to provide sysfs attributes, and x86_energy_perf_policy
or a similar utility is invaluable for managing HWP.EPP, for
this utility works the same, no matter if cpufreq is enabled or not.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-05-11 21:27:45 -04:00
Todd E Brandt 22440373e1 tools: power: pm-graph: Package makefile and man pages
BootGraph and SleepGraph man pages
- includes full descriptions of tool arguments and commands
- includes examples of common use cases

Makefile
- no build required, used only for install
- installs man pages and tools as libraries with links
- includes an uninstall

Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-19 23:26:41 +02:00
Todd E Brandt c4980cee82 tools: power: pm-graph: AnalyzeBoot v2.0
First release into the kernel tools source
- pulls in analyze_suspend.py as as library, same html formatting
- supplants scripts/bootgraph.pl, outputs HTML instead of SVG
- enables automatic reboot and collection for easy timeline capture
- enables ftrace callgraph collection from early boot

Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-19 23:26:41 +02:00
Todd E Brandt bc167c7de8 tools: power: pm-graph: AnalyzeSuspend v4.6
Moved from scripts into tools, and updated from 4.5 to 4.6
- Changed the tool title to SleepGraph
- Reformatted the code so analyze_suspend can be used as a library
- Reorganized all html/js/css handling code to be used by other tools
- upgraded the -summary feature to work faster with better readability

Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-19 23:26:40 +02:00
Doug Smythies 010a522cf2 tools/power/x86/intel_pstate_tracer: Adjust directory ownership
The intel_pstate_tracer.py script only needs to be run as root
when it is also used to actually acquire the trace data that
it will post process. Otherwise it is generally preferable
that it be run as a regular user.
If run the first time as root the results directory will be
incorrect for any subsequent run as a regular user. For any run
as root the specific testname subdirectory will not allow any
subsequent file saves by a regular user. Typically, and for example,
the regular user might be attempting to save a .csv file converted to
a spreadsheet with added calculations or graphs.

Set the directories and files owner and groups IDs to be the regular
user, if required.

Signed-off-by: Doug Smythies <dsmythies@telus.net>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-19 02:47:28 +02:00
Ben Hutchings 4cca045768 cpupower: Fix turbo frequency reporting for pre-Sandy Bridge cores
The switch that conditionally sets CPUPOWER_CAP_HAS_TURBO_RATIO and
CPUPOWER_CAP_IS_SNB flags is missing a break, so all cores get both
flags set and an assumed base clock of 100 MHz for turbo values.

Reported-by: GSR <gsr.bugs@infernal-iceberg.com>
Tested-by: GSR <gsr.bugs@infernal-iceberg.com>
References: https://bugs.debian.org/859978
Fixes: 8fb2e440b2 (cpupower: Show Intel turbo ratio support via ...)
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-04-13 14:51:10 +02:00
Rafael J. Wysocki ad0d9c3bca Merge branch 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Pull turbostat utility fixes for v4.11 from Len Brown.

* 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power turbostat: update version number
  tools/power turbostat: fix impossibly large CPU%c1 value
  tools/power turbostat: turbostat.8 add missing column definitions
  tools/power turbostat: update HWP dump to decimal from hex
  tools/power turbostat: enable package THERM_INTERRUPT dump
  tools/power turbostat: show missing Core and GFX power on SKL and KBL
  tools/power turbostat: bugfix: GFXMHz column not changing
2017-04-13 14:50:11 +02:00
Len Brown 5f9bf02a58 tools/power turbostat: update version number
Signed-off-by: Len Brown <len.brown@intel.com>
2017-04-12 20:03:50 -04:00
Len Brown 95149369c1 tools/power turbostat: fix impossibly large CPU%c1 value
Most CPUs do not have a hardware c1 counter,
and so turbostat derives c1 residency:

c1 = TSC - MPERF - other_core_cstate_counters

As it is not possible to atomically read these coutners,
measurement jitter can case this calcuation to "go negative"
when very close to 0.  Turbostat detect that case and
simply prints c1 = 0.00%

But that check neglected to account for systems where the TSC
crystal clock domain and the MPERF BCLK domain are differ by
a small amount.  That allowed very small negative c1 numbers
to escape this check and be printed as huge positve numbers.

This code begs for a bit of cleanup, but this patch
is the minimal change to fix the issue.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-04-12 20:03:50 -04:00
Doug Smythies ab23d1146a tools/power turbostat: turbostat.8 add missing column definitions
Add GFX%rc6 and GFXMHz to the column descriptions section
of the turbostat man page.

Signed-off-by: Doug Smythies <dsmythies@telus.net>
Signed-off-by: Len Brown <len.brown@intel.com>
2017-04-12 20:03:49 -04:00
Len Brown 6dbd25a245 tools/power turbostat: update HWP dump to decimal from hex
Syntax only.

The HWP CAPABILTIES and REQUEST ratios are more easily
viewed in decimal -- just multiply by 100 and you get MHz...

new:
cpu0: MSR_HWP_CAPABILITIES: 0x010c1b23 (high 35 guar 27 eff 12 low 1)
cpu0: MSR_HWP_REQUEST: 0x80002301 (min 1 max 35 des 0 epp 0x80 window 0x0 pkg 0x0)

old:
cpu0: MSR_HWP_CAPABILITIES: 0x010c1b23 (high 0x23 guar 0x1b eff 0xc low 0x1)
cpu0: MSR_HWP_REQUEST: 0x80002301 (min 0x1 max 0x23 des 0x0 epp 0x80 window 0x0 pkg 0x0)

Signed-off-by: Len Brown <len.brown@intel.com>
2017-04-12 20:03:35 -04:00
Len Brown f4896fa502 tools/power turbostat: enable package THERM_INTERRUPT dump
cpu0: MSR_IA32_TEMPERATURE_TARGET: 0x00641400 (100 C)
cpu0: MSR_IA32_PACKAGE_THERM_STATUS: 0x884b0800 (25 C)
cpu0: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x00000003 (100 C, 100 C)

Enable the same per-core output, but hide it behind --debug
because it is too verbose on big systems.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-04-12 20:03:34 -04:00
Len Brown 818249216d tools/power turbostat: show missing Core and GFX power on SKL and KBL
While the current SDM is silent on the matter, the Core and GFX
RAPL power meters on SKL and KBL appear to work -- so show them.

Reported-by: Yaroslav Isakov <yaroslav.isakov@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2017-04-12 20:03:19 -04:00
Len Brown 22048c5485 tools/power turbostat: bugfix: GFXMHz column not changing
turbostat displays a GFXMHz column, which comes from reading
/sys/class/graphics/fb0/device/drm/card0/gt_cur_freq_mhz

But GFXMHz was not changing, even when a manual
cat /sys/class/graphics/fb0/device/drm/card0/gt_cur_freq_mhz
showed a new value.

It turns out that a rewind() on the open file is not sufficient,
fflush() (or a close/open) is needed to read fresh values.

Reported-by: Yaroslav Isakov <yaroslav.isakov@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-04 15:42:48 -05:00
Linus Torvalds c82be9d224 Power management turbostat utility updates for v4.11-rc1
These update turbostat significantly and in particular:
 
  - Default output is now verbose, --debug is no longer required to
    get all counters.  As a result, some options have been added to
    specify exactly what output is wanted.
  - Added --quiet to skip system configuration output
  - Added --list, --show and --hide parameters
  - Added --cpu parameter
  - Enhanced Baytrail SoC support
  - Added Gemini Lake SoC support
  - Added sysfs C-state columns
 
 Also the symbol definitions in arch/x86/include/asm/intel-family.h
 and arch/x86/include/asm/msr-index.h are updated and the intel_idle
 and intel_pstate drivers are modified to use the updated symbols.
 
 Credits to Len Brown for all of these changes.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJYuLyNAAoJEILEb/54YlRxEvkQAJsggzpgGrlhrO6KHSm4yC9M
 CqhBVsdeppX1ZTAVPiMk/pcXQYtL5fZ97ELk2So/CjT5Nh3jwDPMA/ux5n3uiob+
 O2BTdtxnpNLxPQPQM1mW7Dr/uAIRlJug9gSMxKDbFSU9Oe3aET58PUdUTs7xaT59
 nbtLxVSvzrdGk/bX6WO4ic+7F2licJLZPfDGhYidnoika8LxD4M+cIO73gFpgqQi
 yoKrTZyLimvneFT0eAUUvHIyKjkJIxeMfslW57uBpz8rW5my+3UwsdpRG4AIVeWc
 wSBlsNqj+TuR4BBiZ2VR2RoHF3qbH/SceI+k864BqyThfyK/g2q/vV/GvLZQCR/R
 yWcajWD9kvLKvnm1D3XYOIQDBeP4l60j3vVwHytSvmaPYjn5Ms3jq6b+2K6zkXMM
 8y3leW/hgw+rGCacdXPrKIlpBykSV7h+TnD2iMxeeDISNkbefWWDe/WB6HncocAg
 HDtKRvU9ntRq6/MlnTKbCFM5c0oCXWRw4QNjDy3AsjJELgeAIwiqpHWMKO6XltFj
 qU/rdyW/BTCuAlIjWVbjooAIJZ268geupeug3zvE3uGzrxT4DaVIo8W1wtJ+XQrt
 By7sOW/gMQ2EcTJQiuFjS/Gz5gOKQ2F8OLCm6T8Prjh6SxrCUAiuIvP0LmxUCa8i
 KMlx+8c9E2f9j+TTt9AP
 =oMZe
 -----END PGP SIGNATURE-----

Merge tag 'pm-turbostat-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull turbostat utility updates from Rafael Wysocki:
 "Power management turbostat utility updates.

  These update turbostat significantly and in particular:

   - default output is now verbose, --debug is no longer required to get
     all counters. As a result, some options have been added to specify
     exactly what output is wanted.

   - added --quiet to skip system configuration output

   - added --list, --show and --hide parameters

   - added --cpu parameter

   - enhanced Baytrail SoC support

   - added Gemini Lake SoC support

   - added sysfs C-state columns

  Also the symbol definitions in arch/x86/include/asm/intel-family.h and
  arch/x86/include/asm/msr-index.h are updated and the intel_idle and
  intel_pstate drivers are modified to use the updated symbols.

  Credits to Len Brown for all of these changes"

* tag 'pm-turbostat-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (44 commits)
  tools/power turbostat: version 17.02.24
  tools/power turbostat: bugfix: --add u32 was printed as u64
  tools/power turbostat: show error on exec
  tools/power turbostat: dump p-state software config
  tools/power turbostat: show package number, even without --debug
  tools/power turbostat: support "--hide C1" etc.
  tools/power turbostat: move --Package and --processor into the --cpu option
  tools/power turbostat: turbostat.8 update
  tools/power turbostat: update --list feature
  tools/power turbostat: use wide columns to display large numbers
  tools/power turbostat: Add --list option to show available header names
  tools/power turbostat: fix zero IRQ count shown in one-shot command mode
  tools/power turbostat: add --cpu parameter
  tools/power turbostat: print sysfs C-state stats
  tools/power turbostat: extend --add option to accept /sys path
  tools/power turbostat: skip unused counters on BDX
  tools/power turbostat: fix decoding for GLM, DNV, SKX turbo-ratio limits
  tools/power turbostat: skip unused counters on SKX
  tools/power turbostat: Denverton: use HW CC1 counter, skip C3, C7
  tools/power turbostat: initial Gemini Lake SOC support
  ...
2017-03-02 17:41:27 -08:00
Rafael J. Wysocki 6bff9c609f Merge branch 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Pull changes related to turbostat for v4.11 from Len Brown.

* 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (44 commits)
  tools/power turbostat: version 17.02.24
  tools/power turbostat: bugfix: --add u32 was printed as u64
  tools/power turbostat: show error on exec
  tools/power turbostat: dump p-state software config
  tools/power turbostat: show package number, even without --debug
  tools/power turbostat: support "--hide C1" etc.
  tools/power turbostat: move --Package and --processor into the --cpu option
  tools/power turbostat: turbostat.8 update
  tools/power turbostat: update --list feature
  tools/power turbostat: use wide columns to display large numbers
  tools/power turbostat: Add --list option to show available header names
  tools/power turbostat: fix zero IRQ count shown in one-shot command mode
  tools/power turbostat: add --cpu parameter
  tools/power turbostat: print sysfs C-state stats
  tools/power turbostat: extend --add option to accept /sys path
  tools/power turbostat: skip unused counters on BDX
  tools/power turbostat: fix decoding for GLM, DNV, SKX turbo-ratio limits
  tools/power turbostat: skip unused counters on SKX
  tools/power turbostat: Denverton: use HW CC1 counter, skip C3, C7
  tools/power turbostat: initial Gemini Lake SOC support
  ...
2017-03-01 23:34:38 +01:00
Len Brown e3942ed8c6 tools/power turbostat: version 17.02.24
The turbostat before this last set of changes is obsolete.
This new version can do a lot more, but it also has
some different defaults, that might catch some off-guard.
So it seems a good time to give a new version number.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:26 -05:00
Len Brown 5f3aea5777 tools/power turbostat: bugfix: --add u32 was printed as u64
When the "u32" keyword is used with --add, it means that
the output should be truncated to 32-bits.  This was not
happening and all 64-bits were printed.

Also, when no column name was used for an added MSR,
The default column name was in deximal, eg. MSR16.
Users report that they tend to use hex MSR numbers,
so print them in hex.  To always fit into the columns,
use the syntax M0x10.  Note that the user can always
supply any column header that they want.

eg --add msr0x10,MY_TSC

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:26 -05:00
Len Brown 0815a3d09b tools/power turbostat: show error on exec
When turbostat is run in one-shot command mode,
the parent takes the 'before' counter snapshot,
fork/exec/wait for the child to exit,
takes the 'after' counter snapshot,
and prints the results.

however, if the child fails to exec the command,
it immediately returns, without indicating that
anythign was wrong.

Add an error message showing that exec failed:

sudo turbostat sleeeep 4
...
turbostat: exec sleeeep: No such file or directory
...

Note that the parent will still print out the statistics,
because it can't tell the difference between the failed
exec and a command that is purposefully returning
the same status.  Unfortunately, this may obscure the
error message.  However, if the --out parameter is used,
the error message is evident on stderr.

Reported-by: Wendy Wang <wendy.wang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:25 -05:00
Len Brown 7293fccdff tools/power turbostat: dump p-state software config
cpu1: cpufreq driver: acpi-cpufreq
cpu1: cpufreq governor: ondemand
cpufreq boost: 1

or

cpu0: cpufreq driver: intel_pstate
cpu0: cpufreq governor: powersave
cpufreq intel_pstate no_turbo: 0

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:25 -05:00
Len Brown 7da6e3e212 tools/power turbostat: show package number, even without --debug
On multi-package systems, the "Package" column was being displayed
only if --debug was used.  Show it always.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:25 -05:00
Len Brown dd778a5e6b tools/power turbostat: support "--hide C1" etc.
Originally, the only way to hide the sysfs C-state statistics columns
was with "--hide sysfs".  This was because we process "--hide" before
we probe for those columns.

hack --hide to remember deferred hide requests, and apply
them when sysfs is probed.

"--hide sysfs" is still available as short-hand to refer to
the entire group of counters.

The down-side of this change is that we no longer error check for
bogus --hide column names.  But the user will quickly figure that
out if a column they mean to hide is still there...

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:24 -05:00
Len Brown 4e4e1e7c6e tools/power turbostat: move --Package and --processor into the --cpu option
--Package is now "--cpu package",
which will display just the 1st CPU in each package

--processor is not "--cpu core"
which will display just the 1st CPU in each core

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:24 -05:00
Len Brown da67e2b9fd tools/power turbostat: turbostat.8 update
update examples to show recently updated features.
In particular
--add
--show
--hide
--cpu
--list

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:23 -05:00
Len Brown 6168c2e0fb tools/power turbostat: update --list feature
Make it possible to take the entire un-edited output
from `turbostat --list` and feed it to "turbostat --show"
or "turbostat --hide".

To do this, the leading comma was removed
(no mater what columns are active)
and also they dynamic C-state "C1, C2, C3" etc are replaced
by the string "sysfs", which refers to them as a group.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:23 -05:00
Len Brown 0de6c0df4e tools/power turbostat: use wide columns to display large numbers
When a counter overlfows 7 columns, it shifts the remaining
columns to the right, so they no longer line up under
their column header.

Update turbostat to dectect when it is handling large
numbers, and switch to wider columns where, necessary.

Reported-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:23 -05:00
Len Brown c8ade3616a tools/power turbostat: Add --list option to show available header names
It is handy to know the list of column header names,
so that they can be used with --add and --skip

The new --list option shows them:

sudo ./turbostat --list --hide sysfs
,Core,CPU,Avg_MHz,Busy%,Bzy_MHz,TSC_MHz,IRQ,SMI,CPU%c1,CPU%c3,CPU%c6,CPU%c7,CoreTmp,PkgTmp,GFX%rc6,GFXMHz,PkgWatt,CorWatt,GFXWatt

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:22 -05:00
Len Brown 218f0e8d5c tools/power turbostat: fix zero IRQ count shown in one-shot command mode
The IRQ column has been working for periodic mode,
but not in one-shot command mode, it shows only 0.

until now.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:22 -05:00
Len Brown 1ef7d21afe tools/power turbostat: add --cpu parameter
With the --cpu parameter, turbostat prints only lines
for the specified set of CPUs:

sudo ./turbostat --quiet --show Core,CPU --cpu 0,1,3..5,6-7
	Core	CPU
	-	-
	0	0
	0	4
	1	1
	1	5
	2	6
	3	3
	3	7

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:22 -05:00