Commit Graph

420 Commits

Author SHA1 Message Date
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.
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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
Len Brown 41618e63f2 tools/power turbostat: print sysfs C-state stats
When turbostat shows % of time in a CPU idle power state,
it has always been showing information from underlying
hardware residency counters.

While this reflects what the hardware is doing, and is thus
useful for understanding the hardware,
it doesn't directly tell us what Linux requested --
which is useful for tuning Linux itself.

Here we add columns to turbostat to show the
Linux cpuidle sub-system statistics:
/sys/devices/system/cpu/cpu*/cpuidle/state*/*

The first group of columns are the "usage", which is the
number of times software requested that C-state in the
measurement interval. eg C1 below.

The second group of columns are the "time", which is the percentage
of the measurement interval time that software has requested
the specified C-state. eg C1% below.

These software counters can be compared to the underlying
hardware residency counters (eg CPU%c1	CPU%c3	CPU%c6	CPU%c7)
to compare what sofware requested to what the hardware delivered.

These sysfs attributes are discovered when turbostat starts,
rather than being "built in".  So the --show and --hide
parameters do not know about these dynamic column names.
However "--show sysfs" and "--hide sysfs" act on the
entire group of columns:

turbostat --show sysfs
...
cpu4: POLL: CPUIDLE CORE POLL IDLE
cpu4: C1: MWAIT 0x00
cpu4: C1E: MWAIT 0x01
cpu4: C3: MWAIT 0x10
cpu4: C6: MWAIT 0x20
cpu4: C7s: MWAIT 0x32
...
C1 	C1E	C3 	C6 	C7s	C1% 	C1E%	C3%	C6% 	C7s%
3	6	5	1	188	0.00	0.02	0.00	0.00	99.93
0	6	5	0	58	0.00	0.16	0.02	0.00	99.70
0	0	0	0	9	0.00	0.00	0.00	0.00	99.96
0	0	0	1	24	0.00	0.00	0.00	0.02	99.93
0	0	0	0	9	0.00	0.00	0.00	0.00	99.97
0	0	0	0	32	0.00	0.00	0.00	0.00	99.96
0	0	0	0	7	0.00	0.00	0.00	0.00	99.98
2	0	0	0	36	0.00	0.00	0.00	0.00	99.97
1	0	0	0	13	0.00	0.00	0.00	0.00	99.98

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:21 -05:00
Len Brown 495c7654cc tools/power turbostat: extend --add option to accept /sys path
Previously, the --add option could specify only an MSR.

Here is is extended so an arbitrary /sys attribute,
as specified by an absolute file path name.

sudo ./turbostat --add /sys/devices/system/cpu/cpu0/cpuidle/state5/usage

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:21 -05:00
Len Brown ade0ebacdf tools/power turbostat: skip unused counters on BDX
Skip these two counters on BDX, as they are always zero:
cc7, pc7

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:21 -05:00
Len Brown 31e07522be tools/power turbostat: fix decoding for GLM, DNV, SKX turbo-ratio limits
Newer processors do not hard-code the the number of cpus in each bin
to {1, 2, 3, 4, 5, 6, 7, 8}  Rather, they can specify any number
of CPUS in each of the 8 bins:

eg.

...
37 * 100.0 = 3600.0 MHz max turbo 4 active cores
38 * 100.0 = 3700.0 MHz max turbo 3 active cores
39 * 100.0 = 3800.0 MHz max turbo 2 active cores
39 * 100.0 = 3900.0 MHz max turbo 1 active cores

could now look something like this:

...
37 * 100.0 = 3600.0 MHz max turbo 16 active cores
38 * 100.0 = 3700.0 MHz max turbo 8 active cores
39 * 100.0 = 3800.0 MHz max turbo 4 active cores
39 * 100.0 = 3900.0 MHz max turbo 2 active cores

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:20 -05:00
Len Brown 34c7619762 tools/power turbostat: skip unused counters on SKX
Skip these four counters on SKX, as they are always zero:
cc3, pc3
cc7, pc7

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:20 -05:00
Len Brown 7170a37437 tools/power turbostat: Denverton: use HW CC1 counter, skip C3, C7
The CC1 column in tubostat can be computed by subtracting
the core c-state residency countes from the total Cx residency.

CC1 = (Idle_time_as_measured by MPERF) - (all core C-states with
residency counters)

However, as the underlying counter reads are not atomic,
error can be noticed in this calculations, especially
when the numbers are small.

Denverton has a hardware CC1 residency counter
to improve the accuracy of the cc1 statistic -- use it.

At the same time, Denverton has no concept of CC3, PC3, CC7, PC7,
so skip collecting and printing those columns.

Finally, a note of clarification.
Turbostat prints the standard PC2 residency counter,
but on Denverton hardware, that actually means PC1E.
Turbostat prints the standard PC6 residency counter,
but on Denverton hardware, that actually means PC2.

At this point, we document that differnce in this commit message,
rather than adding a quirk to the software.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:20 -05:00
Len Brown ac01ac1371 tools/power turbostat: initial Gemini Lake SOC support
Gemini Lake is similar to Apollo Lake (Broxton/Goldmont)

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:19 -05:00
Len Brown 0f47c08d8c tools/power turbostat: bug fixes to --add, --show/--hide features
Fix a bug with --add, where the title of the column
is un-initialized if not specified by the user.

The initial implementation of --show and --hide
neglected to handle the pc8/pc9/pc10 counters.

Fix a bug where "--show Core" only worked with --debug

Reported-by: Wendy Wang <wendy.wang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:13 -05:00
Len Brown 008d396eb2 tools/power turbostat: use tsc_tweak everwhere it is needed
The CPU ticks at a rate in the "bus clock" domain.
eg. 100 MHz * bus_ratio.

On newer processors, the TSC has been moved out of this BCLK
domain and into a separate crystal-clock domain.

While the TSC ticks "close to" the base frequency, those that look
closely at the numbers will notice small errors in calculations that
mix units of TSC clocks and bus clocks.

"tsc_tweak" was introduced to address the most visible
mixing -- the %Busy and the the Busy_MHz calculations.
(A simplification as since removed TSC from the BusyMHz calculation)

Here we apply the tsc_tweak to everyplace where BCLK
and TSC units are mixed.  The results is that
on a system which is 100% idle, the sum of the C-states
are now much more likely to be closer to 100%.

Reported-by: Travis Downs <travis.downs@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:13 -05:00
Len Brown 96e4715857 tools/power turbostat: print system config, unless --quiet
Some users want turbostat to tell them everything, by default.
Some users want turbostat to be quiet, by default.

I find that I'm in the 1st camp, and so I've never liked
needing to type the --debug parameter to decode the system
configuration.

So here we change the default and print the system configuration,
by default.  (The --debug option is now un-documented, though
it does still exist for debugging turbostat internals)

When you do not want to see the system configuration
header, use the new "--quiet" option.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:12 -05:00
Len Brown fee86541d2 tools/power turbostat: show all columns, independent of --debug
Some time ago, turbostat overflowed 80 columns.

So on the assumption that a "casual" user would always
want topology and frequency columns, we hid the rest
of the columns and the system configuration decoding
behind the --debug option.

Not everybody liked that change -- including me.
I use --debug 99% of the time...

Well, now we have "-o file" to put turbostat output into a file,
so unless you are watching real-time in a small window,
column count is less frequently a factor.

And more recently, we got the "--hide columnA,columnB" option
to specify columns to skip.

So now we "un-hide" the rest of the columns from behind --debug,
and show them all, by default.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:12 -05:00
Len Brown 33148d671c tools/power turbostat: decode MSR_MISC_FEATURE_CONTROL
useful for observing if the BIOS disabled prefetch
Not architectural, but docuemented as present on NHM, SNB
and is present on others.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:11 -05:00
Len Brown b3a34e9382 tools/power turbostat: decode CPUID(6).TURBO
show the CPUID feature for turbo to clarify the case
when it may not be shown in MISC_ENABLE

CPUID(6): APERF, TURBO, DTS, PTM, No-HWP, No-HWPnotify, No-HWPwindow, No-HWPepp, No-HWPpkg, EPB
cpu4: MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EIST MWAIT TURBO)

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:04 -05:00
Len Brown 0f7887c49b tools/power turbostat: dump Atom P-states correctly
Turbostat dumps MSR_TURBO_RATIO_LIMIT on Core Architecture.
But Atom Architecture uses MSR_ATOM_CORE_RATIOS and
MSR_ATOM_CORE_TURBO_RATIOS.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:04 -05:00
Len Brown e651262477 tools/power turbostat: further decode MSR_IA32_MISC_ENABLE
Decode MISC_ENABLE.NO_TURBO,
also use the #defines in msr-index.h for decoding this register

cpu0: MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EIST MWAIT TURBO)

Although it is not architectural, decode also
MSR_IA32_MISC_ENABLE.prefetch-disable (bit-9).
documented to be present on: Core, P4, Intel-Xeon
reserved on: Atom, Silvermont, Nehalem, SNB, PHI ec.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:03 -05:00
Len Brown 710f273ba9 tools/power turbostat: add precision to --debug frequency output
Add a digit of precision to the --debug output for frequency range.
This is useful when BCLK is not an integer.

old:
6 * 83 = 500 MHz max efficiency frequency
26 * 83 = 2166 MHz base frequency

new:
6 * 83.3 = 499.8 MHz max efficiency frequency
26 * 83.3 = 2165.8 MHz base frequency

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:02 -05:00
Len Brown 0539ba118f tools/power turbostat: Baytrail c-state support
The Baytrail SOC, with its Silvermont core, has some unique properties:

1. a hardware CC1 residency counter
2. a module-c6 residency counter
3. a package-c6 counter at traditional package-c7 counter address.

The SOC does not support c3, pc3, c7 or pc7 counters.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:14:02 -05:00
Len Brown 1df2e55abc tools/power turbostat: use new name for MSR_PKG_CST_CONFIG_CONTROL
Previously called MSR_NHM_SNB_PKG_CST_CFG_CTL

Signed-off-by: Len Brown <len.brown@intel.com>
2017-03-01 00:13:17 -05:00
Linus Torvalds c4f3f22edd linux-kselftest-4.11-rc1
This update consists of:
 
 -- fixes to several existing tests from Stafford Horne
 -- cpufreq tests from Viresh Kumar
 -- Selftest build and install fixes from Bamvor Jian Zhang
    and Michael Ellerman
 -- Fixes to protection-keys tests from Dave Hansen
 -- Warning fixes from Shuah Khan
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Merge tag 'linux-kselftest-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull Kselftest update from Shuah Khan:
 "This update consists of:

   - fixes to several existing tests from Stafford Horne

   - cpufreq tests from Viresh Kumar

   - Selftest build and install fixes from Bamvor Jian Zhang and Michael
     Ellerman

   - Fixes to protection-keys tests from Dave Hansen

   - Warning fixes from Shuah Khan"

* tag 'linux-kselftest-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (28 commits)
  selftests/powerpc: Fix remaining fallout from recent changes
  selftests/powerpc: Fix the clean rule since recent changes
  selftests: Fix the .S and .S -> .o rules
  selftests: Fix the .c linking rule
  selftests: Fix selftests build to just build, not run tests
  selftests, x86, protection_keys: fix wrong offset in siginfo
  selftests, x86, protection_keys: fix uninitialized variable warning
  selftest: cpufreq: Update MAINTAINERS file
  selftest: cpufreq: Add special tests
  selftest: cpufreq: Add support to test cpufreq modules
  selftest: cpufreq: Add suspend/resume/hibernate support
  selftest: cpufreq: Add support for cpufreq tests
  selftests: Add intel_pstate to TARGETS
  selftests/intel_pstate: Update makefile to match new style
  selftests/intel_pstate: Fix warning on loop index overflow
  cpupower: Restore format of frequency-info limit
  selftests/futex: Add headers to makefile dependencies
  selftests/futex: Add stdio used for logging
  selftests: x86 protection_keys remove dead code
  selftests: x86 protection_keys fix unused variable compile warnings
  ...
2017-02-25 15:32:53 -08:00
Len Brown f264288847 tools/power turbostat: update MSR_PKG_CST_CONFIG_CONTROL decoding
AMT value 0 is unlimited, not PC0

Signed-off-by: Len Brown <len.brown@intel.com>
2017-02-25 16:52:32 -05:00
Len Brown 8f6196c192 tools/power turbostat: Baytrail: remove debug line in quiet mode
Without --debug, a debug line was printed on Baytrail:

SLM BCLK: 83.3 Mhz

Signed-off-by: Len Brown <len.brown@intel.com>
2017-02-25 16:52:31 -05:00
Len Brown 71616c8e93 tools/power turbostat: decode Baytrail CC6 and MC6 demotion configuration
with --debug, see:

cpu0: MSR_CC6_DEMOTION_POLICY_CONFIG: 0x00000000 (DISable-CC6-Demotion)
cpu0: MSR_MC6_DEMOTION_POLICY_CONFIG: 0x00000000 (DISable-MC6-Demotion)

Note that the hardware default is to enable demotion,
and Linux started clearing these registers in 3.17.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-02-25 16:52:30 -05:00
Len Brown cf4cbe5314 tools/power turbostat: BYT does not have MSR_MISC_PWR_MGMT
and so --debug fails with:

turbostat: msr 1 offset 0x1aa read failed: Input/output error

It seems that baytrail, and airmont do not have this MSR.
It is included in subsequent Goldmont Atom.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-02-25 16:52:29 -05:00
Len Brown 812db3f77b tools/power turbostat: Add --show and --hide parameters
Add the "--show" and "--hide" cmdline parameters.

By default, turbostat shows all columns.

turbostat --hide counter_list
will continue showing all columns, except for those listed.

turbostat --show counter_list
will show _only_ the listed columns

These features work for built-in counters, and have no effect
on columns added with the --add parameter.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-02-25 16:52:28 -05:00
Len Brown 678a3bd1b3 tools/power turbostat: fix bugs in --add option
When --add was used more than once, overflowed buffers
caused some counters to be stored on top of others,
corrupting the results.  Simplify the code by simply
reserving space for up to 16 added counters per each
cpu, core, package.

Per-cpu added counters were being printed only per-core.

Signed-off-by: Len Brown <len.brown@intel.com>
2017-02-25 16:52:28 -05:00
Linus Torvalds 43e31e4047 ACPI updates for v4.11-rc1
- Update of the ACPICA code in the kernel to upstream revision
    20170119 including:
    * Fixes related to the handling of the bit width and bit offset
      fields in Generic Address Structure (Lv Zheng).
    * ACPI resources handling fix related to invalid resource
      descriptors (Bob Moore).
    * Fix to enable implicit result conversion for several ASL
      library functions (Bob Moore).
    * Support for method invocations as target operands in AML
      (Bob Moore).
    * Fix to use a correct operand type for DeRefOf() in some
      situations (Bob Moore).
    * Utilities updates (Bob Moore, Lv Zheng).
    * Disassembler/debugger updates (David Box, Lv Zheng).
    * Build fixes (Colin Ian King, Lv Zheng).
    * Update of copyright notices in all files (Bob Moore).
 
  - Fix for modalias handling for SPI and I2C devices with
    DT-compatible identification strings (Dan O'Donovan).
 
  - Fixes for the ACPI EC and button drivers (Lv Zheng).
 
  - ACPI processor handling fix related to CPU hotplug (online/offline)
    on x86 (Vitaly Kuznetsov).
 
  - Suspend quirk to save/restore NVS memory over S3 transitions for
    Lenovo G50-45 (Zhang Rui).
 
  - Message formatting fix for the ACPI APEI code (Colin Ian King).
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Merge tag 'acpi-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These update the ACPICA code in the kernel to upstream revision
  20170119, which among other things updates copyright notices in all of
  the ACPICA files, fix a couple of issues in the ACPI EC and button
  drivers, fix modalias handling for non-discoverable devices with
  DT-compatible identification strings, add a suspend quirk for one
  platform and fix a message in the APEI code.

  Specifics:

   - Update of the ACPICA code in the kernel to upstream revision
     20170119 including:

      + Fixes related to the handling of the bit width and bit offset
        fields in Generic Address Structure (Lv Zheng)
      + ACPI resources handling fix related to invalid resource
        descriptors (Bob Moore)
      + Fix to enable implicit result conversion for several ASL library
        functions (Bob Moore)
      + Support for method invocations as target operands in AML (Bob
        Moore)
      + Fix to use a correct operand type for DeRefOf() in some
        situations (Bob Moore)
      + Utilities updates (Bob Moore, Lv Zheng)
      + Disassembler/debugger updates (David Box, Lv Zheng)
      + Build fixes (Colin Ian King, Lv Zheng)
      + Update of copyright notices in all files (Bob Moore)

   - Fix for modalias handling for SPI and I2C devices with
     DT-compatible identification strings (Dan O'Donovan)

   - Fixes for the ACPI EC and button drivers (Lv Zheng)

   - ACPI processor handling fix related to CPU hotplug (online/offline)
     on x86 (Vitaly Kuznetsov)

   - Suspend quirk to save/restore NVS memory over S3 transitions for
     Lenovo G50-45 (Zhang Rui)

   - Message formatting fix for the ACPI APEI code (Colin Ian King)"

* tag 'acpi-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
  ACPICA: Update version to 20170119
  ACPICA: Tools: Update common signon, remove compilation bit width
  ACPICA: Source tree: Update copyright notices to 2017
  ACPICA: Linuxize: Restore and fix Intel compiler build
  x86/ACPI: keep x86_cpu_to_acpiid mapping valid on CPU hotplug
  spi: acpi: Initialize modalias from of_compatible
  i2c: acpi: Initialize info.type from of_compatible
  ACPI / bus: Introduce acpi_of_modalias() equiv of of_modalias_node()
  ACPI: save NVS memory for Lenovo G50-45
  ACPI, APEI, EINJ: fix malformed newline escape
  ACPI / button: Remove lid_init_state=method mode
  ACPI / button: Change default behavior to lid_init_state=open
  ACPI / EC: Use busy polling mode when GPE is not enabled
  ACPI / EC: Remove old CLEAR_ON_RESUME quirk
  ACPICA: Update version to 20161222
  ACPICA: Parser: Update parse info table for some operators
  ACPICA: Fix a problem with recent extra support for control method invocations
  ACPICA: Parser: Allow method invocations as target operands
  ACPICA: Fix for implicit result conversion for the ToXXX functions
  ACPICA: Resources: Not a valid resource if buffer length too long
  ..
2017-02-20 17:55:15 -08:00